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DTMF H323 to SIP Problem


I have a CUBE (3945 Vers. 15.1) H323 trunking with CUCM 8.5 working fine, I'm trying to redirect the call received from H323 to the Sip Trunk service provider, calls are completed but dtmf isn't working, after look some logs I realized dtmf from H323 are received but are not redirect to the Sip Trunk.

dial-peer voice 101 voip

translation-profile outgoing SIP-Trunk

destination-pattern 4901..........

session protocol sipv2

session target ipv4:x.x.x.x

voice-class codec 2

voice-class sip profiles 1

dtmf-relay rtp-nte

voice class codec 2

codec preference 1 g711alaw

codec preference 2 g711ulaw

codec preference 3 g729br8

codec preference 4 g729r8

oice class sip-profiles 1

request INVITE sip-header P-Asserted-Identity modify "<sip:(.*)@(.*)>" "<;user=phone>"

voice service voip

allow-connections h323 to h323

allow-connections h323 to sip

allow-connections sip to h323

allow-connections sip to sip

fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none



Below some debugs:

debug h245 asn1

*Jul 13 18:29:23.071: h245_decode_one_pdu: more_pdus = 0, bytesLeftToDecode = 4
*Jul 13 18:29:23.071: H245 MSC INCOMING ENCODE BUFFER::= 6D400139
*Jul 13 18:29:23.071:
*Jul 13 18:29:23.071: H245 MSC INCOMING PDU ::=

value MultimediaSystemControlMessage ::= indication : userInput : alphanumeric : "9"

*Jul 13 18:29:23.071: h245_decode_one_pdu: H245ASNDecodePdu rc = 0, bytesLeftToDecode = 0
*Jul 13 18:29:23.071: h245_decode_one_pdu: Read Pkt body: more_pdus:0 rc:0 asn_rc:0
*Jul 13 18:29:26.903: h245_decode_one_pdu: more_pdus = 0, bytesLeftToDecode = 5
*Jul 13 18:29:26.903: H245 MSC INCOMING ENCODE BUFFER::= 0400000000
*Jul 13 18:29:26.903:
*Jul 13 18:29:26.903: H245 MSC INCOMING PDU ::=

value MultimediaSystemControlMessage ::= request : closeLogicalChannel :
      forwardLogicalChannelNumber 1
      source user : NULL

debug voip rtp session named-event

debug voip rtp session dtmf-relay


"no output"

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DTMF H323 to SIP Problem

1. configured DTMF Relay Digit-Drop on a Cisco Unified Border Element

//inbound from CUCM h323 dial-peer
dial-peer voice 11 voip
dtmf-relay h245-alphanumeric

//outbound to ITSP SIP dial-peer
dial-peer voice 101 voip
dtmf-relay rtp-nte digit-drop

H.323-to-SIP Connections on a Cisco Unified Border Element