We will be working with a vendor that will be taking inbound calls for my contact center. The calls will come into my S8700 and the skill to agents in Guatemala. Agents in Guatemala will be agents and 4620 IP phones off of the S8700 in MN. We will have a 40 Mbps connection between our facility and theirs this will be used for voice and data back to our data center. The issue we are having is the setting of G729a vs G729b. My Avaya BP recommends G729a, the vendor in Guatemala states that the use G729b, the bandwidth is 8 mbps vs 20-30. Has anyone set up a configuration like this and what have you been recommended? Can anyone tell me what they have experienced for bandwidth or any issues they have going one vs the other? Thanks