Setting bandwidth usage on IP phones

[davidw07]

I have a questions about lowering my bandwith usage for at least one of my IP zones. Currently each one of my IP phones are using 190kbps when they are being used. I would like to lower this to around 64kbps for one of my zones. If I had to do all of them that would be ok also. I found in elamnet manager where I can add additional codecs and change the Voice Payload of current codes. Will changing the voice payload on the code lower the bandwidth the phones are using? I also read that the g.723.1 code supports 5.3kbps or 6.4kbps. If I enable this Code and then change one of my zones to use best bandwidth will it auto select this codec for just that zone? Is there a way I can force one of my zones to use this codec with out messing with my other two zones?

Thanks for any help that can be provided.

 

[Reusser]

You are most likely using 64k now but with overhead you are reaching the 190 - you are probably also set as half duplex which doubles your traffic. to correct that, your T-Lan connections to SigServer and Media Cards should be set to Auto-negotiate.


In element manager - IP telephony - configuration

Select the g729 codec - leave the payload the same for now

Save and transfer - This will then require a reboot I think. It will tell you if it does,

In the zone you want to change - change from bq to bb probably on both intra and inter



You can play with your payload later - by decreasing it you lower your bandwidth but increase your number of packets. and Visa Versa





This will compress to 8k plus over head

 

[davidw07]

Thank you very much for the info. I will give this a try this weekend.