Appendix A SIP Compliance with
SIP Functions
SIP Functions
Function | Supported? |
User Agent Client (UAC) | Yes |
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User Agent Server (UAS) | Yes |
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Proxy Server | |
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Redirect Server | |
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SIP Methods
Five of the six methods used by the SIP gateway are supported:
Method | Supported? | Comments | |
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INVITE | Yes | The Cisco SIP IP phone supports | |
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| ||
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| on hold as signaled by a new INVITE | |
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| that contains an existing | |
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ACK | Yes |
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OPTIONS | No | None. | |
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BYE | Yes | ||
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CANCEL | Yes |
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REGISTER | Yes | The Cisco SIP IP phone supports both | |
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| user and device registration. | |
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| Cisco SIP IP Phone 7960 Administrator Guide |
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