Cisco recommends using: ip rtp 16384 16383 bandwidth for RTP. Out of the range 16384-32767 that VoIP uses, how does it use the port numbers? What ports are used for fax? I have looked on Cisco's website and I have not been able to find any good information on this. Also, these are UDP ports. I can think of other applications that use this port range. It seems kind of silly to give that large of a range priority without other QoS methods in place. John **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _________________________________ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]