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VoIP Service Providers Resource

VoIP Service Providers Resource brings you the latest and greatest information about this new emerging technology.

VoIP Telephone Adapters

VoIP telephone adapters make sense for many. By using VoIP telephone adapters people can plug in a conventional telephone into an Internet connection at home, at work or while traveling. VoIP telephone adapters are especially useful for business travelers who need to make calls worldwide.

Most VoIP telephone adapters are ATA (Analog Telephone Adapters) that connect standard phones to computer networks. Many VoIP ATA telephone adapters also act as gateways by converting voice into digital data packets and sending the packets to a VoIP server either directly or indirectly. VoIP telephone adapters that connect directly to a cable or DSL connection send traffic directly to a VoIP server. VoIP telephone adapters that connect to a PC usually have some software loaded on the PC, which will do the conversion and then forward traffic to the VoIP server (indirect).

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VoIP telephone adapters are typical less expensive that VoIP phones, which is why many choose to buy a simple adapter and use the hardware that they already have in order to make calls. In fact, a fax may but substituted for a telephone as well since fax over internet is now also possible. VoIP telephone adapters are also very portable. Business travelers will especially like the portability feature as they can simply plug 'n' play their adapter into their PC, laptop or PDA through a USB connection. Some software application or Softphone application is usually needed.


In a business setting, VoIP ATA telephone adapters usually have multiple telephone jacks and an RJ-45 connection to a 10/100BaseT Ethernet hub or switch. This enables connection to a local area network (LAN) or wireless local area network (WLAN). These types of VoIP telephone adapters use protocols such as such as H.323, SIP, MGCP or IAX and encodes and decodes the voice signal using a voice codec such as ulaw, alaw, gsm, ILBC to communicate directly with a VoIP server without a need for a softphone.

Besides connecting a conventional telephone to high-speed Internet or through a personal PC, a third type of VoIP telephone adapter can connect a conventional telephone through a dialup connection. This type of connection can be useful in some countries where broadband has not been fully rolled out. This type of ATA adapter typically connects directly to a VoIP server through the dialup connection so it does not require a softphone in order to run.

Combining a VoIP telephone adapter with WiFi capabilities on a laptop or PDA enables travelers to call anyone in the world from such locations as cafes, hotels, airport terminals, college campuses, municipal parks or anywhere there happens to be a Wifi hotspot for a connection. Some cell phone companies are even developing telephones that can roam between Wifi hotspots and traditional cellular networks on the fly for lower cost service. This will be one of the great uses for VoIP in the future. For right now, though, VoIP telephone adapters provide a cost-effective method for many who wish to get VoIP-ing right now.



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