Why Use SIP Trunking?

Saving money and simplifying communications are the traditional reasons for adoting SIP trunking. The actual business cases tends to vary quite a lot, though, based on an organization's readiness to use IP telephony and the existing level of tariffs any organization already is paying.

SIP trunking eliminates the need to purchase dedicated ISDN gateways when a premises IP telephony system is connected to the wide area voice networks. In addition, the services more flexible in terms of use of "channels" and bandwidth.

Some will argue that eliminating overhead and processing improves performance. In practice, one doesn't hear end users mentioning that advantage very much. It normally comes down to "can you save me money?"

The Growth of SIP Trunking Solutions