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Cisco Bug: CSCsz58780 - H320 Gateway does not pass DTMF to PSTN for video calls

Last Modified

Jan 27, 2015

Products (1)

  • Cisco 3800 Series Integrated Services Routers

Known Affected Releases

12.4(24)T

Description (partial)

Symptom:

DTMF digits are passed from IP to ISDN for video calls.

Conditions:

IP Video enabled endpoints registerd with CUCM
CUCM integrates with H320 gateway via H323
On H320 gateway the dial-peer is configured for 
'dtmf-relay h245 alphanumeric or signal'
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