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AcomLevel

I have a 3640 that I use in my IP telephony portion of my network that is a gateway to a Nortel PBX. When I do a "sh call active voice" command I get situations where the AcomLevel on some calls is a negative value, meaning that the output signal level is lower than the input signal level. I do not believe that this should be happening. Should the AcomLevel ever be negative?

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Cisco Employee

Re: AcomLevel

No. If the ACOM level is what appears to be a bogus number, that will usually mean that the echo canceller is not engaged at that moment. It sounds like you may need to tweak the input gain and output attenuation settings on the 3640. HTH.

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