Chapter 1
Overview of the Cisco IP Phone Models 7905G and 7912G
Software Features
1-6
Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)
OL-4277-01
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Call transfer—attended and unattended
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Message-waiting indicator
Related Topics
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SIP-Specific Services, page 1-6
SIP-Specific Services
The Cisco IP Phone models 7905G and 7912G support the following SIP-specific
services:
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Direct IP dialing in addition to proxy-routed calls.
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Configurable periodic registration with a SIP proxy server.
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Authentication support for all SIP methods.
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Configurable NAT support.
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Configurable outbound proxy support.
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Local support for call return (or call back), call forwarding, and call transfer.
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FQDN for SIP proxy and outbound proxy.
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Uses the same configurable MediaPort to transmit and receive RTP audio.
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Out-of-Band DTMF via RFC2833 (also known as AVT tones).
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UDP for SIP signaling.
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Message-waiting indication (MWI) provided via the telephone-handset LED
lamp.
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Distinctive ringing support via the SIP Alert-Info header.
Related Topics
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