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A SIP trunking service is an attractive option for enterprises looking to move on from the PSTN and replace their legacy telephony system. But before migrating to SIP trunking, enterprises and their network managers must know how to pick the right SIP trunking provider, and must understand issues like security.
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Connecting call centers with SIP trunking
The difference between SIP and PRI
Taking advantage of SIP trunking cost savings