further increase the gain for each line. We recommend that you adjust the gain for each line separately, as the characteristics of each line may vary. These controls only affect the volume heard by the caller.

Extension Controls:

These controls can be used to increase or decrease the volume level of calls and system prompts heard at each extension.

VoIP Codec Selection:

By default, all 3 codecs are active and the default codec is G.729 (approximately 20Kbps bandwidth). If, for example, you have a ‘lite’ version of a broadband service, then you would not have enough bandwidth to support G.711 (approximately 100Kbps bandwidth) or G.726 (approximately 50Kbps bandwidth) codecs, as a ‘lite’ connection typically has only enough bandwidth to support G.729. In this case, you should uncheck the G.726 and G.711 codecs so that the system will not attempt to use these codecs when setting up a call. Otherwise using these codecs could cause one side of the call to sound ‘choppy’ since the broadband connection cannot handle the required bandwidth.

3.3.5.2 Transfer Options

This section deals with actions TalkSwitch makes when calls are transferred manually.

3.0

Configuring TalkSwitch

69

Page 79
Image 79
Talkswitch 48-CVA manual Extension Controls, VoIP Codec Selection