[cisco-voip] Low voicemail volume

[Pat Hayes]

I'd try messing around with the gain on the voice ports. I know you said 
that things sound ok on IP Phone calls, but, IP phones have a lot more 
range than Unity (at least by default). What's the volume set to on 
those phones?

In any case, the problem does indeed -have- to be on the gateway, unless 
the calls that get forwarded to Unity are going through different 
transcoders/MTPs than the IP phone calls. Things to keep in mind:

1. Assuming there aren't additional transcoders/MTPs after the gateway, 
there's nothing that can happen to the audio in the network to make it 
quieter, it's a packet, it either gets there or it doesn't.

2. Unity can't tell what site a call is coming from, it can't treat them 
differently.

3. Unity does have automatic gain control, to boost low audio. You can 
take a look at the audio troubleshooting guide for Unity on CCO for 
details on what the settings are and what they do. The defaults are 
pretty reasonable, though, so if they're not cutting it, I'd suspect 
very low audio.

4. You can end the guessing about audio levels by just getting a packet 
capture. Get a capture of a call through this gateway to an IP phone and 
one to Unity. Run them through Wireshark and have it spit out the audio. 
   Only catch is, if you're using 729, you'll need to have that codec 
installed on your PC to playback.

-------- Original Message  --------
From: "Jonathan Charles" <jonvoip at gmail.com>
To: "Erick Bergquist" <erickbee at gmail.com>
Cc: cisco-voip <cisco-voip at puck.nether.net>
Subject: [cisco-voip] Low voicemail volume
Date: 2/28/2008 8:07 PM

> I am pretty sure the problem is gw to unity... but normal call volume
> is fine... this site has 8 analog ports and 10 users...
> 
> 
> 
> Jonathan
> 
> On Thu, Feb 28, 2008 at 7:01 PM, Erick Bergquist <erickbee at gmail.com> wrote:
>> How is the volume if you call into the site and have someone transfer
>>  you to a IP Phone at the location with Unity, to test if volume is
>>  okay on a call across network between gateway and IP Phone at the
>>  location where Unity is versus a call to Unity.
>>
>>
>>
>>  On Thu, Feb 28, 2008 at 5:06 PM, James Buchanan <jbuchanan at ctiusa.com> wrote:
>>  > Hello,
>>  >
>>  >  I found this document:
>>  >  http://www.cisco.com/warp/public/788/AVVID/ts_unityaudioq.html#volume.
>>  >
>>  >  It seemed to have some good tests for narrowing this down.
>>  >
>>  >  Thanks,
>>  >
>>  >  James
>>  >
>>  >
>>  >
>>  >  -----Original Message-----
>>  >  From: Jonathan Charles [mailto:jonvoip at gmail.com]
>>  >  Sent: Thursday, February 28, 2008 5:04 PM
>>  >  To: James Buchanan
>>  >  Cc: cisco-voip
>>  >  Subject: Re: [cisco-voip] Low voicemail volume
>>  >
>>  >  Also, I am convinced this is happening during the recording process as
>>  >  even the email attached wave files are of very low volume... also,
>>  >  internal vmails (IP phone to IP phone) are fine.
>>  >
>>  >
>>  >  Jonathan
>>  >
>>  >  On Thu, Feb 28, 2008 at 5:02 PM, Jonathan Charles <jonvoip at gmail.com>
>>  >  wrote:
>>  >  > Unity 5 using G.729 between sites, other remote sites are fine.
>>  >  >
>>  >  >
>>  >  >
>>  >  >  Jonathan
>>  >  >
>>  >  >
>>  >  >
>>  >  >  On Thu, Feb 28, 2008 at 4:47 PM, James Buchanan
>>  >  <jbuchanan at ctiusa.com> wrote:
>>  >  >  > Hello,
>>  >  >  >
>>  >  >  >  Is this to Unity? Which version? Also, what codec are you using to
>>  >  >  >  communicate with Unity?
>>  >  >  >
>>  >  >  >  Thanks,
>>  >  >  >
>>  >  >  >  James
>>  >  >  >
>>  >  >  >
>>  >  >  >
>>  >  >  >  -----Original Message-----
>>  >  >  >  From: cisco-voip-bounces at puck.nether.net
>>  >  >  >  [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Jonathan
>>  >  >  >  Charles
>>  >  >  >  Sent: Thursday, February 28, 2008 4:44 PM
>>  >  >  >  To: cisco-voip
>>  >  >  >  Subject: [cisco-voip] Low voicemail volume
>>  >  >  >
>>  >  >  >  At one remote site we are getting really low voicemail volume from
>>  >  >  >  outside callers (inside voicemails are fine), I have cranked the
>>  >  >  >  playback volume in Unity to 'louder' to no effect.
>>  >  >  >
>>  >  >  >  We had a minor QoS issue, and our ping times from that location
>>  >  are
>>  >  >  >  around 250ms, but what could account for the low voicemail volume
>>  >  (it
>>  >  >  >  is almost inaudible)
>>  >  >  >
>>  >  >  >  This site uses 8 analogs, and the input gain is set to -3 and the
>>  >  >  >  output attenuation is set to 3, calls themselves are fine... just
>>  >  the
>>  >  >  >  voicemails...
>>  >  >  >
>>  >  >  >  Any ideas?
>>  >  >  >
>>  >  >  >
>>  >  >  >
>>  >  >  >  Jonathan
>>  >  >  >  _______________________________________________
>>  >  >  >  cisco-voip mailing list
>>  >  >  >  cisco-voip at puck.nether.net
>>  >  >  >  https://puck.nether.net/mailman/listinfo/cisco-voip
>>  >  >  >
>>  >  >
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>>  >
>>
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