[asterisk-ss7] Send call directly to gsm voicemail

Jean Cérien cerien.jean at gmail.com
Thu Jul 25 08:42:51 CDT 2013

Some operators provide a dedicated service & number for this. If your
operator doesnt, you need to find the long number for the voicemail -
usually, you'll find it checking the call forwarding parameters of a mobile
phone from this operator.
then, you need to have a full ss7 path from your system to the operator.
make sure that the ss7 forwarding indicator is set, set the caller id to
the voicemail box number you want to contact, and start the call to the
long number.
it may work !

On Thu, Jul 25, 2013 at 7:59 AM, Vallimamod ABDULLAH <
vallimamod.abdullah at imtelecom.fr> wrote:

> Hello List,
> I have a user asking me for a way to call a gsm phone in ss7 and reach
> directly the voicemail without making the phone ring even it is connected.
> Does anybody know of a way to achieve this (tell the callee carrier to
> connect the call directly to the voicemail)? Perhaps with a custom isup IE?
> Thank you!
> Best Regards,
> Vallimamod.
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