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Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)
OL-4277-01
Chapter 1 Overview of the Cisco IP Phone Models 7905G and 7912G
Software Features
Basic Services
The Cisco IP Phone models 7905G and 7912G provide the following basic
services:
• Configuration using LCD screen menus, TFTP server, or web browser
• IP address assignment—DHCP or manual static IP address
• Configurable Type of Service (ToS) bit for Quality of Service (QoS)
• Configurable tone (busy tone, call waiting tone, dial tone, secondary dial
tone, reorder tone, ringback tone)
• Dial plan support
• Remote reset support
• G.711 u-law, G.711 A-law, and G.729A support
• Voice-activity-detection (VAD) and comfort-noise-generation (CNG)
support for G.711 u-law and G.711 A-law, and support for G.729 Annex B
• Dynamic jitter buffer for voice packets
Related Topics
• Protocols, page 1-4
• Supplemental Services, page 1-5
• SIP-Specific Services, page 1-6
Supplemental Services
The Cisco IP Phone models 7905G and 7912G support the following
supplemental services:
• Call waiting
• Calling line ID presentation/rejection (CLIP/CLIR)
• Three-way calling
• Conferencing bridge—up to three parties
• Call hold