Cisco call manager and Ericsson PBX MX1 problem

[islam.kamal]

I have a strange problem between Cisco call manager and Ericsson PBX using E1.The Cisco gateway is configured on Cisco call manager using MGCP i have enable all E1 channels all are ok . The problem is that from Ericsson side there is no ringback when do a call to a cisco IP phone starting from channel 16 to 31  and other channels are ok .All configuration is ok the protocol which is used between Cisco and Ericsson is QSIG and Protocol side in Cisco is network and in Ericsson is user.PLease i need any help or any advise please.

Thank you

Islam Kamal

[Craig Dyer]

Islam,

     I think your issue would be resolved by setting 'Channel IE Type' on the E1 port in CuCM to 'Continuous' and reset the gateway if that doesn't work try 'Timeslot'

Have a look at great the interoperatbilty guide at:-

http://www.cisco.com/en/US/solutions/collateral/ns340/ns414/ns728/ns784/703946.pdf

and the notes on this fourm post:-

https://supportforums.cisco.com/thread/2151370

Hope this helps, please give us an update on your progress.

Good luck,

Craig

(PLEASE RATE HELPFUL POSTS)

[islam.kamal]

i will change it to contious , i will tell you the feedback. I need to make sure that the problem from Cisco or ericsson , may be from ericsson side how can i check that .