[Ovmsdev] GeoSIM problems receiving SMS

[Håkon Markussen]

According to http://www.globalsimcard.co.uk/Data_rates.php GeoSIM have a
roaming agreement with Sweden to Telenor (Vodafone), Telia Mobile
(TeliaSonera), Tele2 and H3G.
However, this does not always mean that a service provider comply on all
mobile- and tele-services.

It is a bit strange, because GeoSIM's present SMS cost
from-Sweden-to-Sweden on their website:
http://www.globalsimcard.co.uk/calls_and_coverage.php
*
To send a text message (SMS)
*
*on Sweden Comviq Mobile - Tele2 (COMVIQ)
    £0.15 ($0.23)
on Sweden Telia-m Mobile - Telia Mobile
    £0.15 ($0.23)
on Sweden Vodafone Mobile - Telenor (Vodafone)
    £0.15 ($0.23)
*

SMS utilizes the networks signalling capacity (MobileApplicationPart
signaling), which lacks of charging abilities.
Operators which exchange signaling usually clearing their accounts (pay
each other), both with national and international signaling.

BThe  CallDataRecords (CRD) from SMS are made in the SMS-Center, not by the
signalling data.
If e.g. a UK-service provider sign a roaming agreement with operators in
Sweden, their SIM-cards are allowed to "log on" (location update) the
Swedish network.
Sending an mobile originated SMS will then load the signaling links from
Sweden to UK, where it's SMSC is located, but the Swedish operator will not
make any money, only have additional expenses due to increased signaling
load.

That is why many operators have blocked their SMS signaling unless the
operators/service provider have signed a special SMS-agreement.

So for your case, I think you have to ask GeoSIM customer care, if they
(still) support roaming in Sweden (MobileOriginated-SMS and
MobileTerminated-SMS).
Also try all the mentioned operators (Telenor, Telia and Tele2).


Br.
Håkon




2013/8/26 Nikolay Shishkov <nshishkov at yahoo.com>

> Hi all,
>
> I got my GeoSIM last week and has some time testing it during the weekend.
>
> I could not get it to receive SMS - it can send sms, it can make calls,
> and receive calls.... but no receiving...
> I tested in two different handsets (apart from the ovms v.2 hardware) and
> tested sending from two different operators here in Sweden. No luck.
> The profile is Global (as it should be) the SMSC number is as it should
> be...
>
> I created support ticket and am waiting for action.
>
> Any advice?
>
> Nikolay
>
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>
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