asterisk users - Oct 2005 - Noise using TE410P & Rhino Channel Bank

Anyone ever experience noise instead of a dial tone. We are using a Digium
TE410P and 2 units of Rhino FXO & FXS Channel Bank.
Everything works well when they are freshly turned on or rebooted, but after
a while there's only noise can be heard instead of dial tone.
Does this have anything to do with the timing configuration?
Where is this time is generated from, is it from the TE410P card?
How can get rid of this noise? Please advice.
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I'm not sure where the noise is coming from, but you can change the timing
source in zaptel.conf
 in zaptel.conf:
span=1,0,0,esf,b8zs ------- Asterisk is using external timing source
span=1,1,0,esf,b8zs ---------Asterisk is providing timing to the channel
bank
 AK

 On 10/7/05, Eddie <tradesearch@gmail.com> wrote:
>
> Anyone ever experience noise instead of a dial tone. We are using a Digium
> TE410P and 2 units of Rhino FXO & FXS Channel Bank.
> Everything works well when they are freshly turned on or rebooted, but
> after a while there's only noise can be heard instead of dial tone.
> Does this have anything to do with the timing configuration?
> Where is this time is generated from, is it from the TE410P card?
> How can get rid of this noise? Please advice.
>
>
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