Do you have a question about the Cisco 9951 and is the answer not in the manual?
Protocols | SIP, SCCP |
---|---|
Resolution | 640 x 480 pixels |
Audio | Wideband audio |
Ethernet | 10/100/1000 |
USB | Yes |
Power | PoE 802.3af |
Speakerphone | Full-duplex |
Headset Jack | Yes |
Codec Support | G.711a, G.711µ, G.722, G.729a, G.729ab, iLBC |
Expansion Module Support | Yes, up to 3 Cisco Unified IP Phone Expansion Module |