Basically I'm having a problem with Call Transfer between IPphones to PSTN.
So if someone has already experienced this problem or some point in particular to check and can help me I'll be very grateful.
1 = The network has a gatekeeper
2 = HQ and Branch Offices, uses G.729 Codec
When the IPPhone 7002 makes a call to the HQ in 7001, and asks to be transferred to a
number of PSTN (7777 8888), the call drops.
The phone 7777 8888 receives the signaling, rings, the caller
hears the ringback tone but when the destination picks up the phone the stream does not close.
Topology is attached.
Tks For all!!! I got it! I solve the problem changing the Call Classification parameter on the trunk configuration settings page from Callmanager to "OFFNet". The gatekeeper now not send me a Release_Comp message.
The help page show this:
This parameter determines whether an incoming call through this trunk is considered off the network (OffNet) or on the network (OnNet).
When the Call Classification field is configured as Use System Default, the setting of the Cisco Unified Communications Manager clusterwide service parameter, Call Classification, determines whether the trunk is OnNet or OffNet.
This field provides an OnNet or OffNet alerting tone when the call is OnNet or OffNet, respectively. The alerting tones are provided by Cisco Unified Communications Manager Annunciators.
Use this parameter in conjunction with the settings on the Route Pattern Configuration window to classify an outgoing call as OnNet or OffNet.