Friday, December 21, 2012

High-Density Call Completion solutions and platforms

Providing alternative long distance routing has been available for some time now. One key to success in this highly competitive business is to use inexpensive yet reliable signalling and media gateways. While PRI can be used to connect to the PSTN, there is a technical limit of 20 T1 lines using a shared signalling channel.  In practice, telephone companies require customers to switch to SS7 signalling when using eight or even four T1 lines.
Improved use of bandwidth on the IP network provides further operational cost advantages, and can be achieved using a codec like G.729 over the IP network,to increase quality of sound.This requires converting between the G.711 protocol used on T1 lines and the codec chosen for the IP network.