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New Member

Volume On Incomming/Outgoing POTs

The vloume on all calls that route through gateways connected to POTS lines are a bit too low. I checked the phone volume and this is not the problem. Currently Input Gain is set to -4Db and Output Attenuation is at 4Db. Is it as simple as changing these settings? Any suggestions are appreciated...

7 REPLIES
Cisco Employee

Re: Volume On Incomming/Outgoing POTs

Decrease the output attenuation. Try using 0 for starters.

New Member

Re: Volume On Incomming/Outgoing POTs

The volume is too low on incomming calls (I didnt specify in my previous post). Will Output Attenuation fix this, or is it the Input Gain setting? Thanks!

Cisco Employee

Re: Volume On Incomming/Outgoing POTs

Those commands apply the same way regardless of whether the call is coming in or going out. The "input" and "output" are referring to the direction of the audio with regards to the DSP, not the direction of the call.

New Member

Re: Volume On Incomming/Outgoing POTs

Dave;

I've got the same low volume issue. My VG200 (mgcp)ports are set to attenuation 0 and gain 0. I've tried changing the gain to 14 and hear no difference in the volume of the unity greeting. The attenuation is already at 0. How can I get the volume up ?

I have another VG200 with a T-1 (H.323) port. The Unity volume is fine on calls into that one.

Rob

Cisco Employee

Re: Volume On Incomming/Outgoing POTs

Are you saying that when you call into the FXO port from the PSTN, that the Unity greeting is too soft?

If that is the case, you need to set the output attenuation to a negative value in order to actually increase the signal of the outbound audio. Note that you can only do negative outbound attenuation in 12.2 images.

New Member

Re: Volume On Incomming/Outgoing POTs

Dave:

Yes. That's exactly the case.

I'll upgrade to a 12.2 version and try setting the attenuation to a negative number.

thanks

rob

New Member

Re: Volume On Incomming/Outgoing POTs

Dave:

It worked! Changed IOS to 12.2, then changed attenuation to -3db on ports. Volume heard by outside caller increased to an acceptable level.

Thanks again

Rob

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