We have a 4506 switch with IOS 15.1. This switch doesn't support our GLC-GE-100FX modules for our 7962 VoIP phones. An interface status shows "media unrecognized".
Working with this switch, what options do we have to make those SFP's work with this switch? Thank you for any assistance with this question.
You are right those modules aren't supported on that line card. You can try the unsupported modules command but it might not work and then your only options is new line card or GLC-SX-MM= modules. Quick question the 7962 IP phone has copper port or do you have the CIS version that is fiber? The unsupported command for third party modules in Cisco switches is
type this first - no errdisable detect cause gbic-invalid
Then type this second - service unsupported-transceiver
Remove SFP module, shutdown/no shutdown the port, insert back the SFP module.
Please let me know if this helped you.