I recently deployed VoIP utilizing E1 link between customer's HQ & branch. The routers is 2621(ios 12.2) & 3640 (ios 12.1) respectively. The connection diagram is like this:
PBX----E1----2621-----Cat6509-----3640-----Wireless-----3640----E1----PBX The signaling is QSIG, PBS are Nortel's. No QOS yet. My problem is, 1 out of 3 calls, I can't heard any thing beside dial tone. I pick up the phone, heard the dial tone, dial, then absolute silence. However, the other side did rang, when the other side pick it up, the same silence occur. From the debug output, everything went normal, I did debug isdn q931 and voip ccapi inout. Both went normal, the same output of debug between the success & failed one. Any suggestion are very welcome. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=56787&t=56787 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
