Port details CUCM to OCS

pradeepser · ‎03-10-2010

Hi,

We have configured SIP trunk between CUCM to OCS and in between we have firewall. what are all the ports i need to allow in firewall for call establiishment between IP phone to Office communicator. Hope CUCM RTP media stream uses 16384-32766 UDP correct me if i am wrong.

1) What would be the source port range if a call is intiated from Office communicator.

2) What would be the source port range if a call is intitaed from Cisco IP phone.

3) CUCM to OCS SIP trunk port details?

Thanks in advance.

Regards,

Pradeep

David Hailey · ‎03-18-2010

OCS ports - go here: http://www.ocspedia.com/Misc/All_About_OCS_Ports.htm

Cisco uses the default UDP ports you've noted already.

SIP trunk would be 5060 (non-secure) or 5070 (secure).

Hailey

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