[cisco-voip] Expressway C&E issue

[Erick Wellnitz]

Not a security or a firewall guy so please bear with me.

We've opened up the ports as advised in this:
http://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/config_guide/X8-1/Cisco-Expressway-IP-Port-Usage-for-Firewall-Traversal-Deployment_Guide-X8-1.pdf

Now, the weird part is that with a jabber client on the internet we get no
RTP with this configuration.  Only when we open any to the Expressway-E do
we get RTP, however we don't get signalling to the jabber client on the
internet.

Are there any other ports we should be opening?

I was under the impression that creating the UC Traversal zone opened up
the logical channel between the C and the E so that everything outbound to
the internet could get to the DMZ and out to the internet.  Am I
misunderstanding?  Is there more configuration I need to piece together to
make the solution whole?

Thanks in advance!
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