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Session Initiation Protocol

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Session Initiation Protocol

Session Initiation Protocol (SIP) enables calls to be routed via the Internet rather than a telephone Network.
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London Head Office

100 Leman Street, London, E1 8EU

Manchester Office

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*Calls to 0845 numbers will cost 7p p/m plus your phone company’s access charge.
All inbound and outbound calls may be recorded for training or quality purposes.

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