Hi,   We have been dealing with this issues for a few months. We have received a confirmation from Cisco that the 6901 is only supported with CUCM and not third party sip servers.   As per Cisco Unified IP Phone 6901 Data Sheet, The phones are suppor...

Same issue here. Any fix!    

Hi Mauro, I am experiencing the same issue.the dialplan has no impact at all and I cannot find any place to change the interdigit timeout default setting.I am keen to know how can Cisco does not support their phone 6901. Hope you have a solution and ...