[cisco-voip] How to use G711 when call placed via CM H323 gateway
Samuel Womack
samuel.womack1 at gmail.com
Wed Jan 7 10:02:11 EST 2009
Try Setting Inbound/Outbound VoIP DP's to utilize G711u; if you don't
specify a codec on a DP then the default is G729r8.
Sam
On Jan 7, 2009, at 8:51 AM, Andy Yerofyeyev wrote:
> Hello ,
>
> I'll appreciate if you can help me understand how codecs is selected
> and how to restrict gateway to use only G711 when call placed via
> H323 gateway.
> I created H323 gateway , assigned gateway to same device pool and
> location as all of my phones , but when I place call thru this
> gateway I can see only g729 codec in H245 capabilities .
>
> debug h245 asn on gateway itself shows about incoming call (from CM)
> capabilityTable
> {
>
> {
> capabilityTableEntryNumber 6
> capability receiveAudioCapability : g729AnnexA : 2
> },
> {
> capabilityTableEntryNumber 5
> capability receiveAudioCapability : g729 : 2
> }
> }
>
> capabilityTable
> {
>
> {
> capabilityTableEntryNumber 1
> capability receiveAudioCapability : g729 : 6
> },
> {
> capabilityTableEntryNumber 44
> capability receiveAndTransmitUserInputCapability :
> hookflash : NULL
> },
> {
> capabilityTableEntryNumber 45
> capability receiveAndTransmitUserInputCapability :
> basicString : NULL
> },
> {
> capabilityTableEntryNumber 46
> capability receiveAndTransmitUserInputCapability : dtmf :
> NULL
> }
> }
>
> If I use Non-gatekeeper controlled intracluster trunk situation
> pretty the same. Just FUI , location bandwidth is Unlimited and 711
> codec configured to use inside Region to which phones and gateway
> belongs to. If call placed from one 7960 to anoter they use 711 codec.
>
> If I restrict to use only 711 codec on gateway itself (by using
> codec-class on incoming dial-peer) call failed.
>
>
>
> --
> Best Regards,
>
> Andriy Yerofyeyev CCIE #21607
> http://www.linkedin.com/in/ccie21607
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
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