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'voice-class codec' for SCCP phones (CME)?

Hi, with SIP phones it's possible to apply a codec voice class.

Let's say I have the following voice class:

voice class codec 1

codec preference 1 g722-64

codec preference 2 g711alaw

I can apply it for SIP phones, e.g. for pool 9:

voice register pool  9

...

voice-class codec 1

...

With SCCP phones, I can only set one codec with the 'codec' command under ephone.

My goal is to use 'codec transparent' in the dial peer and to let the phone itself negotiate the codec. How can I do this with SCCP phones?

For example, if I use 'codec transparent' in the dial-peer and someone (who doesn't support g722) calls me, then the SIP phone negotiates g711alaw with the other side and no transcoding is needed. This is what I also want for my SCCP phones. Am I missing a command?

I'm using CME 8.6

  • IP Telephony
1 REPLY

'voice-class codec' for SCCP phones (CME)?

The syntax for SCCP phones is the same. Just apply the class to the VoIP dial peers.

dial-peer voice 100 voip

tone ringback alert-no-PI

description For InBound VoIP

modem passthrough nse codec g711ulaw

voice-class codec 1 <<<<<

voice-class h323 1

incoming called-number .

fax rate disable

no vad

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