Asterisk 10 and Panasonic TDE200

Hi all, I’m working on developing some call center software for a customer who is currently using a Panasonic TDE200. I installed Asterisk at the location to do most of the work, but calls still come in over the TDE and the agent phones are connected to the TDE so I need some way to connect the two systems. Has anyone had any success using SIP to connect the two? Are there other low-cost alternatives?

There is a simple way to connect two system using SIP Trunking. Panasonic TDE200 is IPPBX right, you have to create one SIP extension into the Panasonic PBX and that you have to configure as SIP Trunk into the Asterisk. This way you can integrate the two system.