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Community Member

Bad voice quality

Hello

i have 2 BABX connected with 2 vic-2e/m (attached to cisco 1760 on both sides)

the 2 routers are connected with BRI (over ISDN°

i have implemented crtp compression and g729 Codec

when i have 2 voip call its ok

but when 3 or 4 voip call the quality is bad !!

what should i add to my configuration

thanks For help

4 REPLIES
Cisco Employee

Re: Bad voice quality

I would say at first glance that you are running out of bandwidth.

have you tried implementing LLQ or any other queueing mechanism?

http://www.cisco.com/warp/public/105/cbwfqdialer.html

also check the bandwidth calculator

http://tools.cisco.com/Support/VBC/jsp/Codec_Calc1.jsp

Community Member

Re: Bad voice quality

Hello,

As you are using cRTP & G729, your problem should not be the bandwidth. Do you have other traffic than voice on this link? In this case, try to implement LLQ.

Or show us your config...

Jean-Philippe

Community Member

Re: Bad voice quality

Merci Jean-Philippe

i dont have any other traffic on the link, only voice traffic

can u give me ur email ,then i send you config

thanks for help

Community Member

Re: Bad voice quality

Hi

Send me your config at this address: jpconi@nextiraone.lu or at jean554@caramail.com

jp

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