Bruce Komito
2005-Sep-29 10:42 UTC
[Asterisk-Users] DTMF tones from PSTN not reaching SIP device
Greetings, I am PRIs connected to a Cisco 36xx gateway, which in turn connects to Asterisk via SIP. The problem I am having is that DTMF tones originated on the PSTN side are not heard on the SIP device. On the other hand, tones originating on the PSTN side are received by Asterisk when talking to voicemail or an autoattendant.>From the Cisco debug, I can see the Cisco sending NTE (RFC2833) RTPpackets to Asterisk and it appears that Asterisk is propogating them down to the SIP device. However when tones are pressed on the PSTN side, all that can be heard on the IP phone is silence. I've tried this on three different IP phones (Cisco 79xx, ZIP2 and Sipura) and they all behave the same, leading me to conclude it isn't a phone config problem. Everything (Cisco and phones) are configured for dtmfmode=rfc2833. Anyone got any ideas? TIA Bruce Komito High Sierra Networks, Inc. www.servers-r-us.com (775) 236-5815
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