What are the essentials that one can do to improve call quality in using SipX? We have successfully replaced our Covad VOIP system with SipX. Covad was using MGCP and we had a 1.5M sDSL line dedicated to voice. In moving to SipX we installed a 10M DIA connection that comes to us through fiber, and are sharing both voice/data. However, we are still hearing from our users both remotely and internally that the voice quality can be poor sometimes.. breaking audio or jitter. Our setup consists of SipX using a siptrunk, behind a Watchguard Firebox. The phone system is on its own VLAN. I understand that once it enters the Internet, its beyond our control.
We have configured the Watchguard for QOS, but not sure what the best configuration is for SipX... ie. DSCP? The phones we have are Cisco 7960s and LG 6812s.. are there specific settings we can do on these phones to improve quality? Ly Tran
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