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D-3
Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)
OL-4277-01
Appendix D Specifications for the Cisco IP Phone Models 7905G and 7912G
Environmental Specifications
Environmental Specifications
Physical Interfaces
Software Specifications
Table D-3 Cisco IP Phone models 7905G and 7912G Environmental
Specifications
Description Specification
Operating temperature 41 to 104°F (5 to 40°C)
Storage temperature –4 to 140°F (–20 to 65°C)
Relative humidity 10 to 90% noncondensing, operating, and
nonoperating/storage
Table D-4 Cisco IP Phone models 7905G and 7912G Physical Interfaces
Description Specification
Ethernet RJ-45 8-wire connector, IEEE 802.3
10BASE-T standard
Power 48-VDC power connector
Table D-5 Cisco IP Phone models 7905G and 7912G Software Specifications
Description Specification
Voice-over-IP (VoIP) protocols SIP (RFC 2543)
Voice coder-decoders (codecs) G.729, G.729A, G.729AB
G.711 A-law
G.711 u-law