hello there,
Is this the call flow:-
PSTN----CIsco GW---h225----CCM----IP phone--transfer ---IP phone (in same cluster).
Some questions:-
++ Are you doing any external transfer?
++ I understand you cant hear the ringback, but did you hear MOH during the call transfer?
++ And you will have three options for user info in Service paramaeter, which one did you use ?
################################################################################################
| Send H225 Uer info:- This parameter specifies which message Cisco CallManager sends for the ringback tone or tone on hold. Valid values follow:
Use ANN for Ring Back: Use Cisco SCCP Annunciator to play ringback tone (available in Cisco CallManager release 4.0 and later)
User Info for Call Progress Tone: Send H.225 user information message to IOS gateway to play ringback tone or tone on hold (This is the default.)
H225 Info for Call Progress Tone: Send H.225 information message to IOS gateway to play ringback tone or tone on hold
Cisco CallManager Version 3.1 does not support the H.225 Information message, so choose 'User Info for Call Progress Tone' if you are using intercluster trunks and any of the clusters is running Cisco CallManager Version 3.1 or earlier. However, if all of the clusters are running Cisco CallManager 3.2(2a) or a later release, you can choose 'H225 Info for Call Progress Tone.' |
| This is a required field. |
| Default: User Info for Call Progress Tone ################################################################################################ |
++ If you choose the default, then you should see similar message during call transfer in the GW.
++ Can you place a test call and collect the following debugs:- (debug h225 asn1, debug h245 asn1, debug h225 q931 & debug voip ccapi inout with the calling details. )
H225.0 INCOMING PDU ::=
value H323_UserInformation ::=
{
h323-uu-pdu
{
h323-message-body information :
{
protocolIdentifier { 0 0 8 2250 0 5 }
callIdentifier
{
guid 'D66E5D8E60EE11E183C7E9D31167CDD6'H
}
}
h245Tunneling FALSE
}
}
++ You can try annuniciator option, but make sure the h323 GW MRGL has annuciator in it.
