[Asterisk-Dev] Re: VoiceTronix OpenSwitch12 Problem

[Ahmad Faiz]

>
> The problem is at channels/chan_vpb.c. Look at the Dialtone, Busytone
> and Ringbacktone arrays. On this arrays, you have a DB Level equal to
> zero but VPB driver accepts DBLevels < 0. So you have to change the DB
> Levels to anything less than 0. I suggest -12 (minus 12) that is the
> default DBLevel for VPBs boards.
>
> Daniel
>

Based on the VPB helpfile that came on the windows driver package (should
also apply to linux-based installations), under the section "Tone Detector
Limits", the minlevel1 and minlevel2 parameters of the tone detector have a
maximum level of 0, so the tone definitions look to be ok, from a
maximum-value perspective.

However I think the problem lies in the fact that the Busytone and
Ringbacktone have values that are (possibly?) outside the valid range of DB
levels; as came on my version of asterisk, these two tones in chan_vpb.c
both had a value of -100 for the second and third tone levels respectively.
Setting this to a value of around -15 to -5 seems to do the trick.

Bear in mind i'm using the OpenLine-based cards; not sure if the same will
apply to the OpenSwitch cards though.

Faiz