I have made a QSIG trunk between an MGCP voice gateway Cisco 2811 equipped with a VWIC2-1MFT-T1/E1 card and an Ericsson BP-250 equipped with a T2 card. I use the CM 6.0 as a communications manager. I have an issue: when I make a call from an IP phone registered with my Call Manager and an Ericsson digital phone registered with the BP-250, the calling number does not appear on the Ericsson Phone. But when I have made a call from an Ericsson phone to my IP Phone, the calling number appear.
Can you please help me and thank you in advance.