We are doing SIP trunk integration between Cisco call manager and NEC SV 8500. From NEC we are able to call Cisco user but one way speech ( Cisco user can hear NEC voice) but from Cisco we are not able to call NEC.
Can anyone help me on this issu...
Hi
We are doing SIP trunk integration between Cisco call manager and NEC SV 8500. From NEC we are able to call Cisco user but one way speech ( Cisco user can hear NEC voice) but from Cisco we are not able to call NEC.
Can anyone help me on this ...
Hi Vivek
Please find attached trace file. System detail is below
NEC :
IP address: 10.128.211.221 ( CPU IP address)
SIP trunk : 10.128.211.229 port 5060
user: 51577
CUCM
call manager 10.142.16.6
User 566
From NEC ...
