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Hi, Are your ephones configured as dual lines? if not can you delete the ephones involved from CME and recreate it with dual-line mode and see if it makes a difference. instead of: ephone-dnuse: "ephone-dn dual-line" when creating the ephone. Thank...
Hi Siva, For PRI utilization alert, here is what you can do login to your CUCM through RTMT and go to System-->Performanceyou can see your call manager servers listed here, now choose the one on which your gateway is registered, you will get a big li...
Have a couple more questions, Please confirm below diagram is correct if this is correct your CUCM is sending 488 Media not acceptable, Do you have "MTP Required" option checked in the SIP trunk (If yes remove it), are you using standard SIP profile ...
