I am looking for a document on the Cisco Web site that tells me what UDP and TCP ports etc I need to allow access to in order for VOIP to work or a general document that may outline this type of information.
Both dominant VOIP protocols are dynamic with their port selection for media. H.323 uses 1718,1719 for RAS and 1720 for Q.931 (TCP). SIP uses 5060 (UDP) for signaling. The media ports are determined at call setup time between the two endpoints.
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...