INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

RTP Ports?????

RTP Ports?????

(OP)
I have Snom phones utilizing an Asterisk server.

Sniffer captures are showing what I expect and ports 10686 as the dest port from the phone. However RTP packets sent right back from the Asterisk server are destined for port 50488.

Does this mean I need to setup QOS with 50488 also??

RE: RTP Ports?????

The QOS your phone has an impact on the quality is the Transmit port. You can assign TOS, Diffserv and/or send it through VLAN dedicated to Media.
From Phone point of view you can configure nothing that can impact the QOS from the receiving port on the phone.
Nevertheless since the RTP is coming from the Asterix server you can configure the ASterix server Transmit port(Receive port on the phone) with a specific priority and/or trasmit through media specific VLAN.
Normally the recive ports and in some cases the transmit ports(or range) are not hard coded. At the entry point to the LAN you can still configure the ALG, etc at the entry point to assign QOS parameters that will help the RTP packets have a good QOS.
Whatever you do configure at the entry point of RTP packets to LAN have no effect on what is going on in the Internet/WAN.
Based on the RTCP measurements the SErver can disconnet or ask for a specifc QOS from the remote site.
The ALG must be able to detect the UDP packets as RTP to be able to do that in case the receive RTP ports are not hard coded.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members!

Resources

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close