Cmterm-7975-sip.9-4-2sr4 -

Cisco Unified Serviceability > Tools > Control Center - Feature Services and restart the Cisco Tftp Device > Phone , select your , and update the Phone Load Name

But if you are tasked with keeping a dozen 7975Gs alive for a call center that is sunsetting next year, this firmware will serve you reliably, provided you harden the voice VLAN and accept the risks. cmterm-7975-sip.9-4-2sr4

If you are still relying on cmterm-7975-sip.9-4-2sr4 , you are managing a system at least 10 years old. Consider these paths: Cisco Unified Serviceability > Tools > Control Center

Firmware Analysis of cmterm-7975-sip.9-4-2sr4 Device Model: Cisco Unified IP Phone 7975G Protocol: Session Initiation Protocol (SIP) Release Type: Special Release (SR4) based on Major Version 9.4(2) this firmware will serve you reliably