Do I need to trun on Traversal Call at VCS X8.2.2?

[JIANDE ZHANG]

I am working on a test. My topology is like

 phone1 ----(sip)----- CUCM1 ----(SIP trunk)--- VCS---(SIP trunk)-- CUCM2 --(sip)-- phone 2

When phone 2 calls phone1,    It shows Non-traversal  ?

Status	Connection Failed
Tag	54c08d8f-2a21-4984-8e32-7c8ff34b6b51
Box-unique call serial number	1d8b5643-9c9c-4523-9b8e-04463af9bd5d
Source alias	sip:82022003@142.102.64.254
Destination alias	sip:85151111@157.26.1.253
Start time	2015-01-12 21:28:03
End time	2015-01-12 21:28:03
Disconnect reason	404 Not found
Duration	0 seconds

Do I need to turn on something for Traversal call?

[JIANDE ZHANG]

I solved it. 

It's Non Traversal call.

[Ayodeji Okanlawon · Accepted solution]

Jiande,

Yes its a non traversal call because media is not terminated on VCS since its sip to sip. If its sip to h323, then the call is interworked and media will be terminated on VCS. In this case the call is classified as a traversal call