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Mobile number call DID number of eSpace7950 in IMS scenario and answer is failed

Publication Date:  2016-09-08 Views:  149 Downloads:  0
Issue Description

    There is an eIMS setup with U1960 GW, the CCS9000 is connected to the U1960 through SIP trunk and phones are registered to the CCS, E1 line connected to the U1960.

    When call from outside (mobile) a phone registered to the CCS, the call should come through the E1 to the U1960 then through the SIP trunk to the CCS then the phone.

    When call from mobile number (50958325) to the DID 22251680 on the eSpace 7950 phone which is registered to the CCS, the call can be received on the phone but once answer it it’s disconnected.

Handling Process

From the logs,it is after the other side connect message,no report the normal ACKnowledge,then it report the status directly,it lead the internal process can not work,when call PDM media resource ,it released the link.

Root Cause
It is after the other side connect message,no report the normal ACKnowledge,then it report the status directly,it lead the internal process can not work,when call PDM media resource ,it released the link.
Solution

Suggest to try to close the status parameter.

The command isconfig softargu type 471 value 0

471

Service

Whether handle the status message received from PRI trunk

0:NO
1:YES(default) 

1

END