Do you have a transcoder available and registered on the IPIPGW? This sounds like an issue where you may be having a supplementary services problem. If I'm right, you probably can't hold and unhold the call either.
----- Original Message ----- From: Sergio Polizer To: ccie_voice@onlinestudylist.com Sent: Thursday, April 02, 2009 8:08 PM Subject: [OSL | CCIE_Voice] DTMF digits from CME calls to Unity does not work Hi, I'm trying to make DTMF digits be recognize by Unity from CME calls through a IPIPGW. This is the topology: CME Phone ---h323---> IPIPGW----SIP---->Unity Please, May someone give me a suggestion? Thank You! This is the config at CME: dial-peer voice 21 voip preference 1 destination-pattern [12]... voice-class codec 1 voice-class h323 1 session target ipv4:10.2.200.21 dtmf-relay h245-alphanumeric fax protocol pass-through g711ulaw This is the config at IPIPGW: dial-peer voice 12 voip incoming called-number [12]... dtmf-relay h245-alphanumeric ! dial-peer voice 13 voip destination-pattern [12]... session protocol sipv2 session target ipv4:10.2.200.21 dtmf-relay rtp-nte (***I tried rtp-nte digit-drop h245-alp but no success) codec g711ulaw ! ------------------------------------------------------------------------------ Quer deixar seu Messenger turbinado de emoticons? Clique aqui e baixe agora. É grátis!