What ports should I enable for improved QoS with Asterisk?
I know 5060, are their any other ports?
asterisk by default will use random UDP ports between 10,000 and 20,000 for the RTP streams. The RTP data is really what you need QoS for, as a bit of latency in call setup/teardown isn’t a big deal.
You can narrow the range of ports used by asterisk in rtp.conf by changing the following lines:
rtpstart=10000
rtpend=20000
Just make sure you provide enough of a range that asterisk won’t run out of ports to use.
Hi,
If you are using IAX you will need to give priority to port 4569.
Also here are a few links that will be help you with QOS.
Voice Over IP - Per Call Bandwidth Consumption
cisco.com/en/US/tech/tk652/t … 4ae2.shtml
Bandwidth Calculator
asteriskguru.com/tools/bandw … ulator.php
Quality of Service for Voice over IP
cisco.com/en/US/docs/ios/sol … SVoIP.html
Understanding Delay in Packet Voice Networks
cisco.com/en/US/tech/tk652/t … 8993.shtml
Understanding Jitter in Packet Voice Networks
cisco.com/en/US/tech/tk652/t … 45df.shtml