
Cisco Unified IP Phone 7912G on SIP firmware, single-line business desk phone.
The Cisco CP7912G-SIP is a Cisco Unified IP Phone 7912G running SIP firmware, a single-line business desk phone aimed at cubicle, retail, classroom and light-traffic environments.
The 7912G integrates a two-port Ethernet switch for daisy-chaining a colocated PC, a pixel-based display with four dynamic soft keys, and support for inline Power over Ethernet. Running the SIP load, it registers to a SIP-based call control platform using standard SIP signalling, with G.711 and G.729a codec support and DHCP/TFTP-based provisioning. Cisco has since retired the 7912G, but many SIP environments still run them for basic extension coverage.
It’s a good match for organisations maintaining an existing Cisco 7900 series SIP handset estate who need matching hardware for expansion, redundancy or like-for-like replacement. Tech-Star (UK-based, shipped worldwide) checks every handset before it ships. Get in touch to confirm compatibility with your call platform.

| Platform | Cisco 800 series ISDN routers |
|---|---|
| Manufacturer | CISCO |

| Platform | Cisco Catalyst 2950G switch family |
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| Manufacturer | CISCO |

| Platform | Cisco Unified IP Phone |
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| Manufacturer | CISCO |

| Platform | Cisco Aironet 1830 Series |
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| Manufacturer | CISCO |

| Platform | Cisco Aironet 1200/1100 series access points |
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| Manufacturer | CISCO |

| Platform | Cisco Unified IP Phone 8900 Series |
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| Manufacturer | CISCO |
| Key Features | Single-line SIP desk phone; integrated 2-port Ethernet switch; inline PoE support |
|---|---|
| Applications | Cubicle, retail and classroom extension coverage; SIP call control environments |
| Compatibility | SIP-based call control platforms; G.711 and G.729a codecs |
| Specifications | SIP firmware load; 2-port integrated Ethernet switch; pixel-based display, 4 soft keys |
| Platform | Cisco Unified IP Phone 7900 series (SIP) |
| Manufacturer | CISCO |
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