El dial-peer esta malo.dial-peer voice 20 potsdescription CELULARES PRUEBAdestination-pattern 90453221323934incoming called-number .direct-inward-dialport 0/3/0:15-------------> no 0forward-digits 13voice-port 0/3/0:15-----> no 0 cptone MXtimeouts in...

Tienes un loop,por eso la llamada NO sale.Puedes subier el 'sh run' y sacar un 'debug ccapi inout' y re intentar la llamada para identificar y reglar el problemaPlease Kudos/rate if this help!

anyway we can see the "sh run" and "sh flash"?Please Kudos/rate if this help!

I havent hear about any bugs like that but I could check if you share your CUCM full version.Wondering, insted of route the call, can you put the translation pattern to BLOCK the pattern, and use a message like "presence level" this will help you ide...

MMM,Sounds a little odd to me,Wondering:Unity integration to CUCM its SIP or SCCP?Have you try to change the transfer option to "release to switch"Does the issue happen transfering to another DN?Is the DN unikeque in the system? [CUCM>route plan repo...