First I would look at the fragmentation of the voice packets; specifically serialization delay. Serialization delay = frame size (bits) / link bandwidth (bps). With voice you do not want to have more than 150ms of delay. However on your 64k link you will be sending 1500-byte packets which takes 187 ms to leave the router over a 64 Kbps link using the previous formula. This will contribute to the bad "reception". Also look at queuing and traffic shaping to improve performance. Check the following link:
http://www.cisco.com/warp/customer/788/voice-qos/voip-ov-fr-qos.html Cheers, Dan -----Original Message----- From: rudhy stiyawan [mailto:[EMAIL PROTECTED]] Sent: Sunday, December 09, 2001 6:37 PM To: [EMAIL PROTECTED] Subject: voice problem [7:28621] Hi Guys, We got a problem when we used 3660 IOS 12.2.(5) connected with 2611 IOS 12.2.(5) two channel voice FXS via Framerelay connection 64K, the sound disjointed and not clear. Can you help me what must be done. Thank's Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=28645&t=28621 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
