The VoIP Lounge

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Incessant ramblings of a Unified Communications enthusiast with sporadic moments of sensibility.

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Did you know?

The SIP protocol does not carry the number 'type' information for calling number such as 'international' or 'subscriber' etc. Therefore, for incoming calls at the PSTN, the calling number needs to be manipulated at the gateway before the call is routed to the call agent over a SIP trunk.