Geoff,

Is this happening with calls to/from any specific country, like France? 
The reason I ask is that in some cases France puts call progress tones on 
the line while the call's being routed. India has a similar "feature." 
I'm not aware of them anywhere else. These would occur during call setup.

The country and direction also effect the answer because billing tones 
aren't sent to remote callers; i.e., calls inbound to a country, only to 
stations directly connected to local exchanges. Billing tones start to 
occur after the call's cut through and the parties have been talking for 
a while.

Dick Shultz

On 1/23/98 2:29 PM Geoffrey Devine <[email protected]> said:

>I'm running into some modem interoperability problems in Europe which seem 
>to be related to calling/billing tones placed on the line at call setup 
>time.  Can anybody point me to the spec which describes how this works?  
>We're calling between various analog client modems and our digital 
>(NET-3/NET-5)  modem server.
>
>Geoff Devine
>[email protected]
>5 Industrial Way
>Salem, NH 03079
>

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