| Wireless VoIP aka, WVoIP is an exciting area in | | | | don't have access to broadband, and only about 3 |
| the VoIP arena. It can be used over WiFi, EVDO | | | | million people in India have access to broadband |
| Revision-A, HSDPA, and WiMAX. Callers aren't | | | | networks out of a total population of 1.2 billion. |
| limited to a single phone, and can use a headset, | | | | Three of the United States WiMAX network |
| laptop, PDA, or a mobile-WiFi phone. | | | | providers include: MetroBridge Networks, which |
| Wireless VoIP has a limited range despite its | | | | covers Arizona and Seatle, Clearwire which holds |
| immense cost savings to mobile users. Also, It | | | | 2.5 GHZ licenses with a test market in the |
| doesn't always work well with WiFi networks that | | | | Northwest, (They plan to compete with other |
| were originally engineered for data as opposed to | | | | WiMAX providers nationwide), and Sprint-Nextel |
| voice packets. This gives current cell phone | | | | who also has 2.5 GHZ licenses, and they plan to |
| networks the advantage over wireless VoIP | | | | cover Washington D.C , Baltimore, and Chicago. |
| despite the gargantuan cost savings. | | | | With all of the intense competition that WiMAX |
| Tata Communications said that they are coming | | | | commands, the innovative technology can only |
| out with the largest WiMaX network to date. | | | | get better, and this is an exciting time for mobile |
| Telsima will build the network. Its supposed to | | | | phone users who want cheaper rates using |
| cover over 110 cities with limited coverage and 15 | | | | wireless VoIP, especially for long distance |
| with full coverage. Many of the areas covered | | | | international calls that will only cost pennies. |