04-22-2004 03:17 PM - edited 03-13-2019 04:45 AM
Does anyone know if there is a specified range of ports that are used by the 7960 phones. In monitoring the network, I see the phones using different ports with each call. I want to close ports via a firewall.
04-22-2004 03:45 PM
The RTP stream will use udp ports 16384 through 32767.
04-23-2004 10:15 PM
Thanks for the prompt response. Is there a document I can pull off Cisco that specifically states that?
04-24-2004 04:24 AM
choose the IP Telephony Security in Depth whitepaper. Look at Appendix A, Validation lab -- it has a table with all the ports listed as well as example configurations.
John
04-22-2004 05:31 PM
SCCP signalling port for Cisco IP Phones is 2000.
04-23-2004 06:35 AM
I was trying to build an ACL which should allow those ports between Phones to CM and phones to phone communication. Can any one suggest a list of ports I can use it in the ACL.
Thanks
Rav
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