Codecs Settings (Outgoing VOIP Call Routing)

Codecs Settings

Use default

To override the default Voice Codecs configuration, uncheck this option. If this option is checked, the default Voice Codecs specified in the “VOIP=>SIP=>Codecs=>Selected Codecs” panel or in the “VOIP=>H.323=>Codecs=>Selected Codecs” panel are used.

Voice Codecs

This panel shows Voice Codecs configuration applied to the current rule. Voice Codecs applied to the current rule are checked and arranged in the preference order.

To add Voice Codec, check it. To remove Voice Codec from configuration, uncheck it.

<Up> and <Down>

Use these buttons to change preference order for the selected audio codecs.

Notes

• Dummy G.729* codec enables to report G.729 Audio Codec support for Fax T.38 Gateways that do not support G.711 and other supported audio formats; use this codec only for resolving compatibility issue. Typically, if dummy G.729* codec is used, T38 Fax with Re-invite mode for outgoing calls should be used too to ensure CNG tone generation.
• When routing a call via ISDN CAPI 2.0 line default G.711 codec is always used.