There’s a great variability between the reliability you can expect from different SIP trunking providers. Much of the difference has to do with the foundation laid down for a SIP trunking provider’s platform.
When you are looking for a reliable Business VoIP solution, it’s important to know which factors impact reliability most. Flowroute CTO, Jordan Levy, discusses the core elements of a strong SIP trunking platform in this post for TelecomReseller.