Regardless of bandwidth, the voice packets need to be given a higher priority than the rest of the traffic. Voice is extremely time sensitive, and jitter will occur if there's a one-way trip time of around 200ms.
One thing to consider is whether or not you're truly using VoIP (which is VoIPoFR in your case), or VoFR. They're similar, but still quite different. If you're truly running VoIPoFR, the following is a link that guides you through configuring QoS and improving voice quality: http://www.cisco.com/en/US/tech/tk652/tk698/technologies_configuration_e xample09186a0080094af9.shtml (watch the line wrap) James Willard [EMAIL PROTECTED] -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of K A Sent: Tuesday, February 25, 2003 11:05 PM To: [EMAIL PROTECTED] Subject: Voice degradation problem in Cisco VoIP network [7:63823] Hi, I am getting voice degradation problem b/w our two sites. Both of these 2 sites are connected using Framerelay with a very good bandwidth. Routers on both sides are 2600 Series with VoIP cards. Calls from one PBX are forwarded to my 2600 router and then it will transmit the VoIP packets to next 2600 Series which will get it back to the destination. The problem is the voice quality which is really terrible. Can you please kindly let me know what are the factors that I should work over now. I am new to Cisco Ip Telephony. So please let me know the basic points or factors on which I should base my research now. I will do my hardwork to resolve it if you guys can give me the basic points to work on. I will really appreciate your co-operation. Thanks alot in advance. K Ali &i=63823&t=63823 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=63832&t=63823 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
