[Asterisk-Users] No ring on extensions

[Surfer Dude]

Thanks Don and Bill for explaining this to me.

So, is the 90v constant during ring?  Or is it intermittent?  Does the 
phone "see" the 90v then make a periodic sound?  In other words does the 
90v occilate?  Is it possible to change the sound of the ring through * (I 
figured out what people ment by * (smile)) or is the ring sound a funtion 
of the phone?

Thanks,
Jason

>I have a couple of the CAC I channel banks in production.  They do work 
>quite well with * but I have heard that the ring generators are a bit fragile.
>
>The channel bank has electronics to generate a 'ring voltage' of around 
>90v that the analog phone will interpret as 'ring' and make some kind of 
>noise (bell chirp etc).  If the channel bank's ring voltage generator is 
>dead it won't be able to ring the phones.
>
>Bill



>The software (asterisk) will determine the state (in this case ringing)
>and send that information to the channel bank over the T1 line via the
>signaling bits of the appropriate channel. The Channel bank will
>recognize the 'ring the phone' signal and which channel of the 24 it
>applies to and then provide the ringing voltage to the appropriate
>phone line.
>
>Don Pobanz