If you still think SIP trunking is primarily about cost savings -- guess what? You're still right. The conventional wisdom on SIP trunking was expected to shift over time, in a classic new-technology ...

For those with lots of distributed PBXs or key systems, adopting SIP trunking means deploying SIP-to-PRI gateways or managing large numbers of new trunks. New offerings based on session management can ...