In most cases, VoIP deployments are still connecting to the PSTN, and that is the root of many quality problems. SIP trunking goes a long way to eliminating these problems, and enterprises are now starting to move in that direction. This is good news, because SIP trunking creates the end-to-end IP connection that can make VoIP truly carrier grade. In fact, SIP trunking sets the stage for IP to perform at peak potential, which translates into a superior quality experience. This occurs when enterprises start supporting wideband codecs for HD audio, which is noticeably better than the TDM quality voice we have long been accustomed to.
Dig Deeper on VoIP QoS and Performance
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