Truncated Called Number in SIP INVITE - CUCM 11.5

[ToriOK]

Anyone knows why IP phone (7861) would not send full Called Party number in SIP invite? See snapshot below which shows wireshark capture for call from one phone (10.23.30.27) to another (10.23.30.78). CUCM is 10.23.30.12.

Phone appears to be sending a single digit when 4 digits were dialed. 

SIP IINVITE from Calling Phone to CUCM

Second snapshot below shows that CUCM receives the called number accurately and is also able to place the call. However, my voice recording system is unable to capture the Called Party details because it is looking for the Call setup message from phone.

Is there a setting on CUCM that fixes this behaviour?

SIP INVITE from CUCM to Called Phone

[b.winter · Accepted solution]

Hi,
probably because the phone sends the dialed digits digit-by-digit (and not enblock).
If you check the next messages in your trace, you should probably see the remaining digit in separate SIP messages.

[ToriOK]

Thanks so much!