DBC Network

Friday, 22 May 2009

Setup Modem ADSL

Preparation and installation of ADSL modem One of the technology to connect to the network using the Internet is the type of ADSL modem. ADSL technology is actually old technology, but continue to increase the update speed modem transfer. In Indonesia itself is still using ADSL technology or Asymetric DSL modem with a speed of the first 386/64Kbps for Upstream and downstream. ADSL technology has limitations, such as the coverage distance from the Telco or pillbox with parent phone modem subscribers can not be too far. You surely know the ADSL from Telkom Speedy Net. If you want to use the ADSL connection, you should check whether your phone number had been registered for the service and ADSL Speedy. List of phone numbers means that services can be provided by the Speedy, and the connection can be run well or in other words your connection will not drop much happened. Because of the remote distance of your home with the main relay and the more major hurdle relay from Telco akan lower connection speed. To install a modem ADSL connection there are some provisions such as rules into the home phone line, installation of the device and setup the modem. Under this will be discussed ways to make up the initial setup on the ADSL modem and computer. Preparation line phone connection using ADSL modem requires one phone line. Currently, users can share the ADSL internet connection with the phone for voice. Very easy to do, for a given ADSL equipment referred to as a splitter or divider line. Position when the splitter is placed in front of incoming phone line. This means you can not graft line with the ADSL modem to vote directly. Splitter useful tool to eliminate interference when you are using ADSL modem. With the splitter both can run simultaneously, which you may be able to call and someone with a regular phone. On the other you can still connect to the Internet via ADSL modem. To give a picture how to divide the splitter like this picture below. Preparation before setup modemSebelum you setup in the ADSL modem you have to go through the steps on the first sheet of the register number and the Telkom ADSL service must open a special line for the ADSL phone number for your home. For information for the ADSL modem general indicator has 3 indicator lights on the PPP, Power, DSL. If you are using a modem connection type ethernet and USB 2 it will be added to the indicator lamp indicator Ethernet and USB. Second light guide to be connected when the port is connected to the computer. Suppose you then use the ethernet ethernet lights will flash, as well as for the USB cable when connected to the USB modem and the computer will turn on the lights as the connection between the ADSL modem with a PC. 3 of the main indicators for the PPP, Power and DSL is the most important indicator DSL and PPP. Lights and DSL modem PPP showed readiness to work on the DSL line. The lamp as the light that your modem is already connected to the DSL line. At the beginning of the modem, the indicator light will flash and send a signal. After some time the DSL light will be constantly on the connection means connected with the already well on the phone line. The lamp defined PPP connection is in progress or there is data flow when a connect to the Internet via a modem to make browsing. System with a different ADSL Dial Up If you are using a modem Internet connection with both Dial-up modem or other types such as data cable to mobile phone. You should know how to work a little akan ADSL modem with a different modem that we mentioned above. ADSL modem that is already at this time allows the user to enter a password into the ADSL modem. So that the user does not need to make income and password from the PC computer through a dial command. ADSL modem designed for ready use. This means when you turn on your computer and modem, some time will directly connect the modem to the ADSL network. When you browse the Internet to open a site such as the ADSL modem will send data directly to the DSL network without your command as to dial the phone number to contact your ISP or internet provider. The difference when doing a modem handshake or log in to the network. For Dial-up modem will be visible when the modem is connected with the pop dial-up program, while not as fast as DSL modem dial-up system and have to wait some time and even take more than 30 seconds to line connection is ready. Similarly to communicate, to ADSL modem automatically when the signal from the computer to send and receive data. There is one additional feature on the modem that is the system on and off automatically. Here the actual advantages and disadvantages of each system modem. If you are using ADSL modem that has a feature on and off, the feature is very useful to turn off the modem while not in use. Are inexpensive modem will continue to open the ADSL line, so that the modem is not cheap at suitable time base or the calculation of the time. Suggestions for the connection with the ADSL modem to use the Low input DSL modem. Suggested using the latest OS such as Windows XP for easy install. Use to connect the cable modem with Ethernet connection rather than USB, as USB connections will disrupt the performance of computer. Setup modem can you do on your own Making konfigur DSL modem does not actually install a different device on the computer. Unless the system network in the system as a part of the DSL modem. Most of the DSL modem is included as a gateway router. This means DSL modem door made out of data or as a medium or as a path that must be passed by another computer connected to the Internet. Because of its function as a router, each computer connected to the IP need to know how the DSL modem itself. Generally, DSL modem to provide a specific IP number such as 192.168.1.1, and another computer require the number to the number entered as the gateway, especially if you choose static IP connection or fixed IP. When you use the type of IP-free or DHCP, you do not need to know the IP number. Especially on Windows systems already have features of DHCP (dynamic IP on the client) will do a search of the Gateway router automatically. To install a modem is easy. For example configuration settings on a modem under this model. You just enter the stage to install a driver or your DSL modem. At the initial stage, you only need to enter the modem type and configuration to check if the line is ready to use, check the DSL modem and Internet connection memerika on the modem itself. Picture settings made under this automatically from the software installation modem. Image under this section is quite important. You need to enter a customer name and password provided. Please note that each connection requires a modem name and password. Similar systems, such as Dial-up where you must enter your name and password to enter the network from the internet service provider. Finish entering your subscription data you, your modem is ready to use. And should also reminded, DSL modem will store your data, if you change the password to log in on the DSL modem then you need to re-enter the appropriate changes made. To check the status of IP, you simply call the number from the modem IP as the picture below this number if the DSL modem IP is 192.168.1.1 as the IP gateway for another computer (client) To explain the existing data in the image above is as follows: For the in the image on the left top of the image: * modem connection speed of 384/64 Kbps or equal to 38KB perdetik download and upload to 6KB perdetik. * Internet connection's connection duration * * The system's connection * Username or customer service number is called username * IP Address, IP is a number from the modem to the Internet (not the internal LAN IP) * Default Gateway is the gateway of the DSL modem for your modem * DSN The primary and secondary information box on the left only has a relationship with the settings from the service provider such as a speedy. Unless the number Primary and Secondary DNS that may need to be used for client computer on the LAN network. Box to the right info on the modem that is enabled as a router. Containing information for the internal modem as model, firmware, Ethernet MAC Address and others. The most important system for the LAN are on the bottom. Contains a number LAN IP Address is 192.168.1.1. The number will be the gateway router's IP number or your client computer in the network if the network you are using the internet sharing computer to many. All the connected computer, whether 1 or more fruit than one would use the number to connect to the Internet. Numbers can be directly terditeksi automatically install when a computer on the LAN network such as connecting the computer to the hub ethernet (LAN network) over UTP cable and HUB connected to DSL modem. For settings such as internet akan WinXP connected automatically using DHCP (dynamic IP), and you can just run the setup from the Network on WinXP. So Windows XP can recognize the Router / Gateway, and IP settings for the Internet can directly terditeksi when you install the USB or Ethernet network via software. But there are some cases that is slightly different when you use the old OS as Win98SE. System WIn98SE less smart than the Windows XP system. Maybe you need to enter data on the network configuration in Win98SE manually. For example Win98SE system could not directly connected automatically. You need to enter the IP manually on Win98SE network setup. Enter the IP number you want but have a limitation on the information from the router that is presented at the top. Or you can enter the Gateway to your router manually. For example, DSL modem to provide data that have only numbers 192.168.1.2 through 192.168.1.254. IP means your computer must be on the number. For example you can enter a number with your computer 192.168.1.3. Then an additional number of Gateway DSL modem that functions as a router with the 192.168.1.1. To ensure your IP number is the same as the right, you can go to DOS Prompt and type ipconfig entries. View on the Ethernet Adapter is the IP, subnet mask and gateway IP already be showing. If not appear, try restarting your computer again so that the new settings can be recognized by the OS. If the computer can not display this data you may need to manually enter in the control panel -> Network -> select TCP / IP on ethernet -> click the properties. Speciify and select an IP Address if you want to manually enter data such as picture above, or select a permanent alternative to setting the DHCP IP Address automatically. Do not forget to restart the system Win98SE needed before the IP number can be modified to work. To read more detail data from a computer IP configuration to connect to the router modem, you can also use the program's internal Win98SE with WINIPCFG. So the data will appear from the computer you more detail than the command ipconfig. Troubleshooting when the computer is not Win98 can not browsing. On display there are settings Win98SE number on the IP settings on the DHCP server or DHCP Dynamic IP. DHCP server IP number in the box should be there. If the network does not show in Win98SE IP, the computer is not connected to the Internet. To get a Gateway IP number, you simply press the bottom part to renew renew IP Gatewayhttp://www.santamariacirebon.web.id

Tuesday, 12 May 2009

Huawei, investment fund buy 3Com for US$2.2B

Network equipment vendor 3Com Corp. has agreed to be acquired by associates of Bain Capital LLC and of Huawei Technology Co. Ltd. in a deal worth US$2.2 billion, 3Com said late last month.

Huawei affiliate Shenzhen Huawei Investment & Holding Co. Ltd. will take an unspecified minority stake in the company, and will be a commercial and strategic partner of the company, 3Com said.

The agreement has received the unanimous approval of 3Com's board of directors, which is recommending shareholder approval.


“The 3Com board of directors and senior management team have thoroughly reviewed our strategic alternatives and have determined that the agreement with Bain Capital provides the best value for 3Com shareholders,” said Edgar Masri, 3Com president and CEO, in a statement. “We believe that this agreement better positions 3Com to establish itself as a global networking leader, which will benefit our employees, our customers and our partners.”

3Com and Huawei are former joint venture partners. In 2003 they set up Huawei-3Com Ltd., an enterprise networking equipment company with headquarters in Hong Kong and factories in China. Last November, 3Com ended the alliance by paying US$882 million for Huawei's 49 per cent stake in the venture, now called H3C Technologies Co. Ltd.

As part of that sale, Huawei agreed not to compete with 3Com in certain markets, and remains one of the company's largest customers: around 30 per cent of H3C's business comes from Huawei, company officials said Friday.

It's not the first time this year that investment funds have taken a major networking company private: enterprise telecommunications equipment vendor Avaya Inc. was bought by Silver Lake Partners and the Texas Pacific Group for US$8.2 billion.

Reports that 3Com was for sale have been circulating since earlier this year. Back in July, networking rival Nortel Networks Corp. was said to have shown an interest.

The US$2.2 billion price tag represents a 44 per cent premium over the share price at the time, 3Com said. Bain hopes to close the deal by the first quarter of next year, subject to shareholder and regulatory approval.

3Com reported financial results for the quarter to Aug. 31 two weeks ago. Sales for the quarter totaled US$319 million, up six per cent on a year earlier, but the company's net loss widened, to US18.7 million from US$14.1 million a year prior.

By: Peter Sayer

Expert's Forum--How to Sell Fixed/Mobile Converged Services

Operators must develop products that combine the best aspects of fixed and mobile services into offerings that are more than just price plans. Current offerings will become less attractive as the cost of mobile services drops.

Operators that are now testing and launching fixed/mobile voice services must recognize that current converged offerings are merely a form of price plan. In the short term, they may help to reverse or slow declines in revenue by retaining customers, although we are skeptical that many will be attracted by the cumbersome handsets offered with such packages. Operators will have to work much harder to develop converged services for data and voice communications.


More and More Attention

Fixed/mobile convergence is receiving considerable attention from telecom industry. It describes the paradox of bringing together two opposite characteristics. Fixed communications are tied to one location; mobile communications can be carried out on the move. Most uses of the term refer to operators' attempts to combine the best aspects of both into one product.

The industry is still working out how best to combine voice, Internet and value-added services, such as music or video. Operators of fixed and mobile services intend to play a major role in delivering this content. Each operator is hoping that all traffic for these services will converge onto its network.


There are many methods of connecting to networks for voice and data services, few of which are fully interoperable. In this research note, fixed/mobile convergence describes seamless connectivity for both voice and data across fixed and mobile networks. Fixed-line-to-mobile substitution for voice incorporates any event or action that results in a proportionate increase in minutes on a mobile network in comparison with those on a fixed-line network. This includes the preferential use of a mobile phone over a fixed-line alternative, or a choice by users to rely on a mobile alternative. Fixed/mobile substitution is driven by purely mobile operators. For example,O2 in Germany has, for many years, offered a mobile service, Genion, which gives users a single number with a reduced tariff at home and normal Global System for Mobile Communications(GSM) charges outside a "home" cell. Users can also move their fixed-line number to the Genion service.

Users are starting to demand that services such as voice or a VPN (Virtual Private Network) can be accessed through a high-quality network that is always connected. People have different profiles depending on where they are:

  • At home, residential users and teleworkers use fixed lines for voice (over PSTN), broadband (DSL) for Internet and VPN access, wireless LAN (mostly 802.11b) for wireless connectivity and mobile services for voice and data.

  • At an office or on a campus, employees use the corporate PBX for voice communications, the corporate LAN and WAN (which uses a variety of technologies), wireless LAN (802.11b and g), as well as mobile and remote access services, such as those used at home.


Convergence and Commercial Bundling

Gartner differentiates between real converged services and commercial bundles that are simply marketed as convergent offerings.

Real convergence is when an operator offers services or applications that are integrated, such as voice mail or a presence and directory system that embraces fixed lines, VoIP and cellular connections. One example would be a common voice mail service for both fixed and mobile numbers. Another would be a voice service that detects and uses the network with the lowest cost to the customer, regardless of whether it is mobile, WiFi or DSL. Those services should be managed through a single-user portal that offers single sign-on procedures, as well as common authentication, authorization and accounting (known as "triple A").

Operators should evaluate convergence as a way to create service-oriented offerings that will set them apart from rivals that offer less-expensive stand-alone services. These offerings should provide enhanced convenience, support for personal identity and community, as well as entertainment for nonbusiness customers. Fixed-line operators looking to stem the flow of customers replacing their fixed-line voice service with a mobile connection should consider value-added services. BT Fusion is an example of a purely voice-convergent service. In contrast to commercial bundles, convergent services that deliver additional value don't need to be discounted.

Commercial bundling is when a single provider offers multiple communications services as a package - for example, when an operator offers DSL, remote WiFi access and cellular services in a single contract. There is little or no functional integration between the individual services, but there may be some economies in procurement. Operators aim to be the single provider of all communications service and so derive the maximum share of total spending. By offering a fixed and mobile bundle, providers can differentiate themselves from providers offering only fixed or mobile services. The disadvantage for operators offering a commercial bundle is that users expect a discount in return for their loyalty. This means about 25 percent less revenue than that generated by the purchase of two separate services from the same operator.

Operators must look carefully at the level of discount applied to a package and be aware that bundles could spark a price war. They should evaluate the level of outside competition, whether bundles would erode the operator's own revenue, how much opportunity bundles offer to limit churn, and how much it would cost to acquire customers.

Both bundling and convergence let residential users, teleworkers and corporations save money, but there are risks. Few operators will be best in class for all converged or bundled services. Service bundling and convergence may be used by service providers to drive users to subscribe to services that they do not need. For the bundled options, many offers are on the market for so-called Triple-Play services. Providers range from former monopolies, such as TeliaSonera and France Telecom, to cable providers and Tier-2 players. Their target market is mainly residential users.

Operators with both fixed and mobile networks can reduce their internal cost structure because of fixed/mobile network convergence and achieve a lower cost of production. This may lead to higher margins or larger market share if the benefit is passed to users.


Voice Convergence Across Networks

This type of solution provides a single wireless phone and a personal number. In the home, it uses WiFi or Bluetooth to connect to a DSL service and sometimes seamlessly hands over to GSM networks outside. Examples of this type of service are BT's Fusion, a converged offering from Korea's KT, and the fixed/mobile product being tested by TeliaSonera in Denmark.

From a consumer perspective, the need for such services in handsets will remain less attractive than standard phones through 2008. Furthermore, the first handsets with WiFi technology will address the needs of business users, not those of consumers. Uptake in the lower end of the consumer segment will be limited, and operators should consider marketing them to business users.

Converged voice services appeal to users because there is a possible reduction in the cost of calls made at home or at identified locations. In their current forms, these services offer an opportunity to bypass high mobile charges as an arbitrage offering. But they are not a long-term convergence play, although they may serve as an initial converged platform upon which other services can reside. There's also the convenience of a single device with single directory and voice mail. Where indoor mobile network coverage is unsatisfactorily, a converged solution using WiFi to supplement it may be an option as dual-mode terminals become more available and the price of those terminals comes down.

Voice converged services are driven mainly by fixed-line operators and those with fixed and mobile networks. They are trying to compensate for the erosion of revenue from traditional voice services by enriching home broadband connections. By offering lower tariffs to home users, thanks to VoIP over WiFi or Bluetooth transmitted via DSL, they hope to gain a larger share of users' spending. These services need a fixed line in the home (that is, PSTN + DSL or, in some places, DSL only). Therefore, this concept of a converged service can be seen as a commercial bundle by fixed carriers of a DSL connection plus mobile voice service. It's a defensive strategy.

We predict that the price differential between fixed-to-fixed termination and fixed-to-mobile termination will diminish and become less important as a rationale for customers buying these services. This is the result of price reductions stimulating further fixed-to-mobile substitution and of pressure by regulatory groups, especially the European Regulators Group. The combination of these two forces has left operators little choice but to reduce termination costs in the long term.

Many countries have already started to lessen this differential, and in Austria fixed-to-mobile termination costs are the same as fixed-to-fixed. In areas with extensive mobile network coverage, like countries in Western Europe, poor indoor reception is generally not a problem, even though there are pockets where the mobile coverage does not provide a good substitute for the fixed network. Therefore, in the longer term, purely voice-based converged services will remain niche offerings in most of Western Europe, but might be successful in countries or locations with unsatisfactory indoor coverage.


IP VPN Convergence Across Networks

Fixed/mobile converged services are also increasingly offered for data connectivity. Many service providers have added these offerings to their portfolios to better meet the requirements for constant connectivity to corporate networks, regardless of location. Similar to voice services, a selection of network technologies is combined to offer connectivity, and sometimes also seamless hand-over between these alternatives.

One such offering comes from Nordic operator TeliaSonera. Its Connect Pro service offers continuous VPN connectivity through a combination of GSM and 3G networks, Telia's WiFi "hot spots" ,corporate wireless LANs and ADSL (in combination with wireless LAN) for home use. The service normally selects the highest transmission speed based on the networks available. The pricing model is built on data traffic transmitted and received. A monthly charge of 895 kronor includes 1GB of data, and unrestricted Internet access from Telia Home Run hot spots. Unlike many other services, Connect Pro handles seamless handover while maintaining a session, although the service is restricted to portable devices that run Windows. France Telecom and Vodafone offer similar services without a seamless hand-over (and hence maintenance of the session).


Alternative Providers Aiming to Introduce Convergence

As well as fixed/mobile convergence driven by traditional telecommunications providers, new players are trying to extend their value chain and deliver some form of converged services into the mass market.

Yahoo is introducing a service with SBC Communications that will link cell phone services to Yahoo users' accounts, address books and preferences. In 2004, Google began letting U.S. consumers obtain search results by sending text messages from cell phones. In June, it started to provide users with search results from an index of Web sites optimized for cell phones.

To accelerate the uptake of mobile Internet enabled by greater bandwidth on cellular networks, several operators, such as Verizon, Sprint Nextel, Cingular and T-Mobile, signed deals with Google and Yahoo to encourage customers to use their phones as a device to surf the Web.


Recommendations

Current converged offerings are purely voice-centric, and operators' integration plans focus on discounts rather than gaining revenue. To differentiate themselves from competitors and to grow revenue, all service providers need to do the following:

  • Develop value-added services with the same features and presentation across multiple interfaces, for example, on mobile and fixed terminals, desktop and laptop PCs. The services should also be geographically independent when weaving in technologies such as IP and WiFi.

  • Develop entertainment offerings for consumer segments to compensate for the declines in the price of voice and pure data access.

  • Enable all services with a single sign-on, help desk and after-sale support across multiple access channels. This will provide a seamless access experience to customers.

  • Hybrid operators with fixed and mobile networks might obtain a cost advantage over those with one type of network by delivering to multiple access channels. They should consider using the immediate cost savings made from fixed-mobile network convergence to gain more market share.

  • Fixed-service providers should ensure their offerings include mobility in some form and carefully balance investment in mass-market converged voice products with development of converged services for business users on- and off-site. A first step for pure-play fixed operators is to consider forming partnerships with mobile operators or mobile virtual network operators.

  • Mobile-only providers should consider how to exploit the emergence of fixed/mobile convergence in light of accelerating fixed/mobile substitution. In some markets, the launch of a fixed/mobile converged offering from a fixed provider may offer wholesale opportunities, such as those offered to Vodafone by BT's Fusion.

Modem Huawei E220: surprises from the small

Rush never force the young man. Ari Jaya is not the type of worker-to nine-five, which is glued in at the office from 9 am to 5 pm. Rather, he was not the type of employee kantoran like that.

Senior programmer in the company of office applications that are mobile workers. Half-time can be spent on the road, a cafe, or airport. He should go back and forth to fly to different cities to menyambangi clients. Often he must also work in a cafe in its Town Square Cilandak, South Jakarta. Slurp coffee warm while he read a letter or check the application of remote clients.

"Senjatanya" especially if not a laptop and modem 3,5 G (generation-3, 5) the Huawei E220. Duet gadgets that make Ari always connected to the office and clients.

3.5 G Modem Huawei E220 modem this is the dream for this. Only size of a mini mouse. "So the cord is not ribet, I placed the modem in the laptop back," said the man was wearing a variety of mobile phone Sony-Ericsson K800, Nokia 6233, Nokia E61 and modem-to 3G (third generation) that. This excess is a modem rather than using 3G mobile phone as a modem.

Do not ask a matter of speed, Huawei E220 is already mengusung technology 3.5 G or High Speed Downlink Packet Access (HSDPA) technology for the fastest Internet access in Indonesia at this time. With technology, the modem can have this mini maxi speed. The theory can be up to 3.6 megabit per second. Time also has tried his speed and can get a 1.5 megabit per second using HSDPA technology owned by Telkomsel.

3.5 G technology that offers speeds spellbind rather than 3G. You try sitting in a café while download movies or software. With 3G network one day, habitue Internet, such as Ari, can download files of 100 megabytes. The 3.5 G with one hour, you can get a file of 1.2 gigabytes. Mini modem that surprising.

Saking pleased with its modem, the modem Ari never wear it 13 hours nonstop without dropouts. Reliability is also a modem that makes people turn away from such as Ari-modem using modem technology Code Division Multiple Access, offered Fren, Flexi, Esia or.

Huawei is not the name of the modem world. Lose its name by Sierra Wireless, Vodafone, or Globetrotter. But Huawei Reliability can not be regarded lightly.

Concerning the installation, for example, a modem at Rp 2.2 million this be calculated easily installed. Software default is only suitable for Windows XP. However, in the virtual world, we can get the software for the Macintosh user or Ubuntu Linux.

Other advantage is a modem connection with the USB and PCMCIA card model as the other modem. With a USB connection, the modem can dicolokkan to laptop or computer, with a different PCMCIA card that can only be used in the laptop.

With that, the benefits of that, not surprisingly when the modem is Huawei his stars will shine bright in India. Evidenced a number of operators, such as Telkomsel, XL, Indosat and, working together this China-made modem.

Finally, only the thickness and extent of your wallet 3.5 G network operator which is the limit of enjoyment of surfing with this modem.

+ (Plus) Small, high-speed with the 3.5 G, colokan USB can be used in laptop or computer.

- (Minus) when the Heat used a long time, only the default software for Windows, rather than more expensive price PCMCIA modem.

Frequency: HSDPA / UMTS 2100 MHz and GSM / GPRS / EDGE 900/1.800/1.900 MHz Antenna: Internal SIM / USIM card: standard 6 PIN SIM card Dimensions: 89 mm (p) x 43 mm (l) x 14.5 mm (t) Weight: <50 id="fullpost">
Burhan Sholihin, Koran Tempo

Sierra 881 modem review





Sierra 881u USB modem is a respite, this modem can also be GPS. 3G/HSDPA signal is 3 bars I currently stable (average: -87 dBm). I use my unlimited Telkomsel flash my position in the region Cipete, Jakarta-Selatan. Also currently have 1 bar when the rain again, but speed is still ok! I do not use the external antenna, but also often dapet 3G/HSDPA Signal 4 bars, for the area you are less good 3G/HSDPA signals do not worry this suppor modem with external antenna, there is colokannya boss, live like antennanya aja. This modem is also a bit stubborn, I never use more nonstop 24jam the modem tetep Adem, I cepet tetep hot and stable. Ok banget deh ...! Following features and specifications Sierra 881u modem:

AirCard 881U USB Modem Features:
o Transfer wireless data at speeds up to 7.2 Mbps on HSUPA networks capable
o High performance internal antenna
o Supports worldwide roaming through HSUPA / HSDPA and UMTS on the 2100, 1900 and 850 Mhz band, Quad-band Class 12 EDGE / GPRS on the 850, 900, 1800 and 1900 MHz bands
o Supported OS: Windows ® Vista, XP, 2000, and Mac OS X
o Field firmware upgradeable

Sierra Wireless Aircard 881U USB HSUPA Wireless Modem. HSUPA (High Speed Upload Packet Access). Download Speed = 7.2 Mbps, Upload speed = 2 Mbps. USB 2.0 480Mbps interface (Compatible to almost all type of computer). Built in GPS Module (Already in the can open and use its GPS features). Built-in Lithium Polymer battery. Fully support All GSM operators worldwide (guaranteed to work properly with all GSM operator). OS Compatible list: Windows 2000, Windows XP, Windows Vista & Mac OS.
Brand new card. Ex-AT & T United States. ADA SUDAH GPS (GPS-Enable).
HSUPA USB SierraWireless from. Good quality. GPS is already there.

I was initially confused to choose between Huawei e172 or Sierra 881u, after googling ria I finally decided to buy Modem Sierra 881u. Considerations I catch the signal power is better, if tenyata a good signal we can use the external antenna (already have slot external antenna), the external antenna is a signal has been good and stable and are working on that are recommended (up to -87 dBm -90 dBm) huawei while I read a lot about the signal that is received in good condition depends on the coverage area masing2, but unfortunately have not huawei colokan for external antenna does not support aliases. Modem sierra this refractory, colok full 24 hours tetep stable, while cepet huawei summer if conditions such as frequent need to disconnect and restart the network, so is stable. This modem can also be GPS, although featurenya not too useful for me, because it is still a PC neh bro! But I already use this feature with the Garmin software. See the image below:
Wahhh so I discovered the location deh ...!!! To make the GPS function you need the settings first, hopefully tomorrow I can post a tutorial setting with GPS modem Sierra 881u with the software from Garmin.

However, the lack of modem sierra 881u also have, among others, the lack of:
- Still using battere, so there is pakenya age! But in fact this is used as battere anticipation usb power that is not stable. Many are selling polymer battera this price range between 80rb-90rban.

- Dimensions gede almost a little of HP esia huawei 200an do, but many more lightly, I even light.

- Design USB slot fracture risk, for you who often colok and pull the modem is more careful aja. This problem actually can be solved by buying its docking deck, between the price 125rb-150rban.

- Modem I think this is quite cheap compared to the usb modem laen, 700k price range I have to enable GPS ya ...!!

About the course of my testimony, if you want to add that there may be bro and sis. In conclusion Modem Sierra 881u recommend feasible in deh ...!

3G Watcher that I use the default software from the sierra (see the signals that I dapet cuy ..!!!


Signals from the speedtest results

heart heart used to buy cable modem

Kabelvision Group (now First Media) as a provider of internet access services through a network of cable TV (CATV) has several subsidiaries that provide a variety of subscription packages. One is MyNet, which has subscribed to the package 256 Kbps speed internet and many attractive cafe. MyNet this package on the cable modem device as loaned by the parties MyNet. But who thought that this facility dikemudian day can cause a variety of issues including the sale of the property MyNet modem.

I only mention his name ANDRA, recently interested in using the cable internet service which was launched Kabelvision Group. Presumably because he tretarik charge a very affordable (about Rp. 108.000/bulan), ANDRA and initiative to buy a modem device used / second which is required in order to enjoy access to the internet. He is also advertising on the internet, not the other ads in respond. A claim to the cafe owner in the area Pengadegan, South Jakarta confess that it has a device that required the ANDRA according to him, only his name called Ronny, used to former business warnetnya.

Ronny offered price is Rp. 250.000, but without the completeness of the adapter and cord, which was then purchased by ANDRA. Andra and register any Internet service from one of the group Kabelvision, and follow the instructions from the Kabelvision, one of which is the MAC Address verification cable modem.

mac addressNah here the problem begins, according to the parties based on MAC Address Kabelvision given ANDRA, Cable Modem was Kabelvision is the property of their status in this case is MyNet. In fact the cafe owner has been selling the loaned Kabelvision, and is now demanding Kabelvision own party were returned. Feeling tricked ANDRA restore the modem directly to the retailer who live dikawasan Nusa Gran Cibubur, Arriving there quibble that the seller is that time of the registration but he is not friends.

ANDRA finally agreed that the seller will wait to confirm with the "friends" is the new money will be returned pembeliannya. However, the basic apes, the other end there is no news from the modem to the seller, even when in the area were kediamannya Cibubur was not seen again stem the nose seller alias has been blurred.

While the parties continue to insist Kabelvision modem to the ANDRA when the goods have been returned to the seller, according to the ANDRA Kabelvision seemed afraid or reluctant to collect the modem Oasis cafe's owner. According to the seller remain ANDRA confirmed that the modem's own and he (the seller) Kabelvision regard because there is a disappointment because he often submits complaint over poor quality of internet access Kabelvision in warnetnya, while claiming Kabelvision different.

According to the ANDRA, Ronny this is indeed the ingenious trickster, "when he shoot the transaction has a large development project Joomla system valued total hundreds of millions of rupiah, fortunately I do menyanggupi project from him, if I may not be the victims of other scams. But if the problem with Kabelvision about jeleknya connection Kabelvision, I get less, they may aja gak Akur ". From the above cases we can remember that the quotation should be cautious when deciding to buy Cable modem used in the market, because it could be the modem is owned Kabelvision that never managed penyitaannya.

Cases such as this is not possible can not override the internet provider and other customers, which provides system equipment loans, and the amount may be very many. Instead interested in the goods so cheap even dupe cafe owners who have millions of rupiah on the outstanding providers. Legality of the difficult position in the ANDRA through the right authorities.

So no wonder then if ANDRA akan how come - how "informal" in the right jockey (money) back from the modem to the seller. While the Kabelvision and the seller? Kabelvision may at any time modemnya akan forget to stop and collect the ANDRA and the sellers are enjoying the benefits of penipuannya, while the buyer is always a disadvantage by "Accidental mutualisme" between the seller and the Kabelvision.

tips to buy a modem

You often work with the internet, must know about the modem. At least not this term foreign diteling you. Just to mengingtakans aja, peragkat modem is a mediator between your computer with the phone lines that can be related to the ISP (internet service provider - your Internet service provider).

Each communication device remote two-way generally use the "modem", such as VSAT, Microwave Radio, and others. But more generally the term modem dikanal as hardware that is often used in computer communication utuk.

Access the Internet through a modem flow 28.8-, 33.6-, or 56 - kbps modem technology, known as "voiceband". Like voiceband modems, cable modem and demodulasi data modulation signal. However, the combination of cable modem service to more functional with a high speed internet. On the network cable, data from the network to the user as the "downstream", where user data to the network as is "Upstream." Level Upstream and downstream data may be configured for use with flexible cable modem.

If you want to buy a modem, you need a little careful not to choose one. Modem circulating current average sduah have speed 56 kbps. In addition, there are many brand and type. Then, the modem what should we buy? following a few tips to buy a modem:

* Choose from the modem manufacturers that have good online support.

Before buying, it's good if you try to come to the manufacturer's website. If you can not find the website or if they have, check their website, if the website does not provide technical support and a good driver for download, you will regret buying the modem.

* Do not be affected with the sale of goods and cheaper prices.

Your modem is an important tool in the main and connection to the internet. You have spent a lot of money to buy a computer system, and you also pay the cost of telephone connection charges and monthly, so do not cut corners with little to buy a modem with a cheap low-quality internet connection, which caused a bad result in the monthly cost membengkaknya.

* Setia with the brand and model that is popular with kehandalannya

This gives you good support and the possibility of upgrading the firmware, and modem is also the value of selling the store better if you want to sell or upgrade the modem.

So, although many now circulating modem "No Name" with a speed of 28.8 / 33.6 and 56 kbps visible modem is better than previously existing, may be the best advice can be given a look from the modem manufacturer that has a good reputation, and have website, which provides support and facility upgrades are available. (* / RON)

Source: newspaper wartakota