I have configured single number reach on CUCM 18.104.22.168000-1. The Single number reach is working perfectly fine except in the following scenario.
Outside caller dials the DID. The call rings on desk phone and the mobile phone. The mobility user picks the call from the Mobile phone. The call is than transferred to the desk phone using mobility feature. The caller than tries to transfer the call back to the cell phone by pressing the mobility softkey we get an error " mobile number error". This is the same cell phone the call was transferred from. Any help on this problem is much appreciated.