I am planing to integrate an Avaya G3 V12 with a CCM 5.1. I am thinking of using either:
1) A SIP trunk btw Avaya G3 and CCM 5.1
2) a Cisco 2851 (CME) Gatway with PRI
My question is how the licencing is going to work. Do I need to buy any licences for this integration? If so, is it going to be per user or it comes in bundle? If you have any previous Avaya-Cisco integration experience and know how much the licencing will cost, please let me know.