I am having CCM 6.0 and few Cisco IP telephone 7960G,and the E1 PRI is getting terminated at the Gateway router.
1. Gateway router lan IP is the gateway for the CCM 6.0
2. The ISP IP is the gateway for my gateway router.
3.CCM IP is the TFTP IP and Call manger IP for IP Phone.
4. IP Phones are getting registered and able to make a call within the LAN.
5.From the gateway router I have tested the E1 PRI link by dialing from the router to some mobile,and I am able to dial from the gateway router.
Now the problem is from the IP Phone I am not able to call the outside number through the E1 PRI link.
What could be the probable cause for the problem? How could I proceed to troubleshoot the problem.
Please any help me,It is very urgent ,the customer shouting very much.I have to get it resolved within 24 hours.
Thanks and Regards,