I have 2 offices connected via a T1, currently used for data only. Each end has a Cisco 2621 with a WIC-1T for the T1 termination. Ethernet is connected to a LAN on each end. Each office also has a Mitel PBX. I would like to combine voice and data on the T1 between offices, giving 12 channels each to voice and data.
Can I put a VWIC-2MFT-T1-DI in each of the 2621's and do this, connecting one port to the PBX and one port to the T1? In the documentation I have read it is not clear if I can insert the LAN data from the ethernet port into the T1 using this method, or if I would need a Digital T1 Packet Voice Trunk Network Module.
The voice traffic is only going PBX to PBX. PBX interface on each end is D4(SF) AMI E&M.
Thanks in advance for any suggestions.