I have a new BCM400 3.7 with all new patches. It supports about 90 digital phones and only 9 i2004 VoIPs fed by 8 analog CO lines. The 2004's are on their own network consisting of 2 Nortel 5520-24 switches connected via fiber.
My issues are echoing only when the Voip's are connected to a analog trunk, whether incoming or out going. At normal conversation level all is ok but if you increase the volume of your voice echoing starts. The louder a person talks the greater the echo. I have tried turning QOS off, playing with the jitter buffer and every combination of codec. I have also checked to make sure there are no mismatches between phones and switch ports. Currently everything is set to auto-negociate. I did try manually switching to full duplex- 100M.
All calls to and from Digital sets are fine.
All station to station (internal) calls are fine. (dig to dig and voip to dig.)
Anyone have any ideas?
My issues are echoing only when the Voip's are connected to a analog trunk, whether incoming or out going. At normal conversation level all is ok but if you increase the volume of your voice echoing starts. The louder a person talks the greater the echo. I have tried turning QOS off, playing with the jitter buffer and every combination of codec. I have also checked to make sure there are no mismatches between phones and switch ports. Currently everything is set to auto-negociate. I did try manually switching to full duplex- 100M.
All calls to and from Digital sets are fine.
All station to station (internal) calls are fine. (dig to dig and voip to dig.)
Anyone have any ideas?
