[Asterisk-Users] Open Ports

[Norman Zhang]

> Cisco phones use udp ports 16384-32776, while Xlite uses something like
> udp ports 8000-8050, and Polycom phones use another range, etc. If you
> worked for a large company that didn't have any sip phone standards and
> you had to open everything that _could_ be used for rtp, then you really
> would be opening a hugh number of udp ports. At least some of those ports
> have other uses.

Thank you all for the insights and explanations. May I ask is it 
possible to fix the SIP phones to a specific range? I guess there will 
be options in the configuration menu to override to factory UDP port range?

Regards,
Norman Zhang