On May 8, 5:57*pm, John Henderson <jhenRemoveT...@talk21.com> wrote:
> Mouse wrote:
> > Hi ALL,
>
> > Does anyone know if it is possible (by SMS'ing a GSM code type
> > arrangement) to change the diversion (forwarding) number on an
> > unattended mobile telephone. Do I have to have an application
> > on the phone to facilitate this? Any info/ideas would be
> > great.
>
> I seriously doubt it's possible, for security reasons alone.
>
> Another aspect is that the diversions are not held on the phone
> - they're part of your configuration data on the network
> itself. *For that reason, you may have noticed that you can't
> change diversions when there's no coverage.
>
> Changing diversions using the phone's menu system attempts an
> immediate "supplementary services" data session with the
> network. *So because networks have absolutely no requirement to
> modify diversion parameters on users handsets, I doubt that a
> specific GSM port number has been allocated to facilitate this.
> If it were possible, technical specification 3GPP 23.040 would
> provide the mechanism (section 9.2.3.24.3 or 9.2.3.24.4).
>
> John


Hi John,

Thank you for your input, time and effort.

Regards
Mouse