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Community Member

CME 8.6 - SIP - H323 no voice


could you help me, when i call from SIP phone 9951 to AVAYA over H323 there is no voice, but call is established.

Thanks in advance

voice register global
mode cme
source-address port 5060
max-dn 5
max-pool 5
load 9951 sip9951.9-2-3-27
authenticate register
authenticate realm all
timezone 32
time-format 24
date-format D/M/Y
tftp-path flash:
file text
create profile sync 000410054377842A

voice register dn  1
number 85709
allow watch
name user1
label user1

voice register pool  1
id mac 64D9.89C3.C654
type 9951
number 1 dn 1
dtmf-relay sip-notify
username cisco password cisco
codec g711ulaw
no vad

dial-peer voice 201 voip
destination-pattern .T
session target ipv4:
voice-class codec 1
dtmf-relay h245-alphanumeric
no vad

Hall of Fame Super Gold

CME 8.6 - SIP - H323 no voice

do you have a firewall between systems ?

Cisco Employee

CME 8.6 - SIP - H323 no voice

Run the following debugs and then paste them here and I'll check them out:

debug voip ccapi inout

debug ccsip messages

debug h225 asn1

debug h245 asn1

If possible upload a txt file since the output may be very extensive.

Community Member

CME 8.6 - SIP - H323 no voice

in the interface config, have you added the following line:

h323-gateway voip bind srcaddr a.b.c.d

NOTE: replace a.b.c.d with the ip addr of your interface

Community Member

Re: CME 8.6 - SIP - H323 no voice

Also please attach the sh run se we can have a look this seems to be a codec problem, if no firewall is in the middle.

Sent from Cisco Technical Support iPad App

Re: CME 8.6 - SIP - H323 no voice

Debug voip rtp packets to see the RTP packet exchange.

Debug h245 asn1 to see the IP Address and port number exchanged between the CME and the avaya.

Community Member

Re: CME 8.6 - SIP - H323 no voice

Thank you for your answers, the problem is solved.

Helped the following config:

Voice service VoIP


Call start interwork

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