report that version 8.x is often more reliable than later v9.x releases, specifically for features like conference calling and stable registration. Broad Compatibility
Configured with Option 150 or Option 66 to point the phone to your TFTP server's IP address. cmterm 7941 7961 sip 8 5 4 zipl
portal (requires a valid Cisco ID and often a service contract). TFTP Setup report that version 8
"7941" and "7961" are model numbers for Cisco Unified Communications Manager (CUCM) or Cisco Unified IP Phones. Specifically: cmterm 7941 7961 sip 8 5 4 zipl
Navigate on phone: Should display: 8.5(4) .