Remote diversion change

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.

Thank you.
Mouse

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

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

On May 8, 7:57*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

Such a facility was available on Telstra's PSTN network, although
never used.
It involved dialling the Remote Control number on your home switch to
get an interactive IVR, which stepped you through the process of
changing Easycall settings on your home number remotely.

Such a thing has never been done on the Telstra GSM network.
You can however, call the Mobile helpdesk on 125111 and get them to
set/change diversions for you if you can prove you own the service you
want the diversions changed on. (for Telstra).

Good luck.

"John Henderson" <jhenRemoveThis@talk21.com> wrote in message
news:68g14nF2rkc60U1@mid.individual.net...
> 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

And after all that jibber-jabber, the answer is: THIS FACILITY DOES NOT
EXIST IN AUSTRALIA
>
>

> 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

> Such a facility was available on Telstra's PSTN network, although
> never used.

What are you talking about? Everyone uses it

Michael wrote:

> And after all that jibber-jabber, the answer is: THIS FACILITY
> DOES NOT EXIST IN AUSTRALIA

I'm sure that's right, at least for the combination of phone and
network built-in features.

But the more I think about it, the more I suspect that such an
application /could/ be written for "smart" phones, like
Symbians.

And it could be secure too. Install a purpose-built application
onto the phone, and ask the phone user to configure a password.
Then the application would wait for a specially formatted SMS
with password and diversion details. This would see the phone
opening a supplementary services session (assuming support for
that in Symbian), and changing the diversions.

Maybe it's time I bought a Symbian phone and had a play with it.

John