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| Version | User | Scope of changes |
|---|---|---|
| Mar 23 2009, 11:05 AM EDT (current) | vocale | 52 words deleted, 1 photo added, 1 photo deleted |
| Jan 7 2009, 1:36 AM EST | vocale |
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Key: Additions Deletions
SIP or 'The Session Initiation Protocol' is the signalling protocol used to set up things like a Voice over IP call. Once the call is setup the voice can pass between the devices.You'll also find SIP in Video, Instant Messaging and other forms of communication and it's replacing traditional trunking protocols.
