g.729 3rd party VOIP on Cisco routers QoS – am I doing it right?

pts.
Tags:
Availability
Bandwidth
Cisco
Ethernet
IPv4
Network protocols
Networking
Routers
SIP
TCP
VoIP
Hi, I am unsure about which configs are sufficient for implementing QoS on 2 2600 series routers over a 2MB serial link. On one side is the IP pbx and there are up to 6 IP phones plugged into a switch on the other side. We are using a non-cisco VoIP product using g.729. From what I can see all I need to do is put the following commands on the serial interface's of both routers (where "70" referring to 70Kbps should be enough for 6 calls?): bandwidth 2000 ip rtp header-compression ip rtp reserve 16384 100 70 I have a few questions: Is this right? What about the Ethernet interfaces? Do they need commands to prioritise the traffic on the ethernet interface? We have looked at the traffic used on the phones and they use ports around 7000-8000 for actual voice packets...but the advice I read says that the command (ip rtp reserve 16384 100 70) covers it all (16384 +100)??? Thanks for any help in advance. Rob.

Answer Wiki

Thanks. We'll let you know when a new response is added.

Are you able to get the phones to ring on the other side? I would first wonder if the 2600 will pass the invites and so on through successfully.

Discuss This Question: 2  Replies

 
There was an error processing your information. Please try again later.
Thanks. We'll let you know when a new response is added.
Send me notifications when members answer or reply to this question.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
  • Robbieg
    Hi, Maybe I didn't explain myself properly. We haven't actually implemented this yet just checking that I am doing it right. Thanks anyway! HAve you done this?
    0 pointsBadges:
    report
  • Paul144hart
    Something like it but used the AS5350 gateways (VoIP - ISDN lines). But since you are using g.729 you'll need to look into the out of band signalling to make sure its not blocked. The other traffic running out the ethernet interfaces should worry about the switches they run on - do they have QoS for rtp traffic? If there at their maximum you may want to seperate the VoIP traffic. PS: I assume the 2MB link has more than calls on it?
    0 pointsBadges:
    report

Forgot Password

No problem! Submit your e-mail address below. We'll send you an e-mail containing your password.

Your password has been sent to:

To follow this tag...

There was an error processing your information. Please try again later.

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Thanks! We'll email you when relevant content is added and updated.

Following