I'm reviewing a SIP trunking solution for Contact Centre for about 1000 agents spread out across 8 sites. In a nutshell, there will be CUBE interfacing to ITSP with SIP trunks. All all contact centre agents on branch sites will be using these SIP trunks to talk to the outside world. Just wondering if anybody had the experience of using this model and encountered any issues ? Likewise, any issues encountered by using SIP as VOIP protocol.
Appreciate your feedback.