Hello there, I am new with UC 500. I have set up UC 540W with AA option and forwarding incoming calls to operator extension with no caller action . We use PBX FXO ports only. I have issue with outside caller. Once outside caller calls, and if no one ...

Hello there, I have UC 540W-FXO-K9 with latest CME Bin 8.6.2 (IOS version: Cisco IOS Software, UC500 Software (UC500-ADVIPSERVICESK9-M), Version 15.1(4)M6, RELEASE SOFTWARE (fc2)) and new SPA 504 G with latest firmware 7.5.7s.It seems the Phone can r...

Hello, I have UC 540W-FXO-K9 with latest Bin 8.6.2 and new SPA 504 G with latest firmware 7.5.7s. It seems the Phone can register with UC 540 with no issue. However, I cannot hear any dial tone when I pick up the phone. However, once I dial the exten...