Operating system name and version: Windows or Linux


I have the same topic as user VVV but the topic was locked so I had to start a new one.

Is it possible to create a multisim environment with SMST3 with some devices so that I can use 4-20 sim-cards to send sms-messages. I would then develop a program on top of that system to manage messages. I already sent a message to the BlueTower sales and Multichannel PRA, but thought to ask here also. What kind of modems should I then use?

Is it possible Keke to have live consulting if I am ready to pay for it? Probably hour or two would make it clear what to do if I prepare my questions properly.

Thank you.

Kettu



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Quoting user VVV:

Our company successfully uses smsd with several GSM modems ( with COM interface ).

I am interesting , is it possible for smsd to operate with so called GSM gateways , single hardware modules that include several GSM channels and SIM cards.

The question is actual for us , because we forsee situation when number of modems will increase , say , up to 20 - 40. In this case , it would be difficult to maintain them all and protecti all those devices through a UPS.

One of devices I mentioned is "2N® BlueTower Multichannel GSM Gateway"
( http://www.2n.cz/products/gsm_gateways/isdn_pri_gsm_gateways/bluetower_gsm_gateway.html )

Thank you in advance.

Kettu wrote

Is it possible to create a multisim environment with SMST3 with some devices so that I can use 4-20 sim-cards to send sms-messages. I would then develop a program on top of that system to manage messages. I already sent a message to the BlueTower sales and Multichannel PRA, but thought to ask here also. What kind of modems should I then use?

It is possible with a suitable device, but for example 2N BlueTower is not supported because it has a modified AT command interface and it's single interface for all devices.

When only SMS messaging is required, some other devices may be better for this purpose. For example this 8-GPRS-24 looks interesting. I have not used or tested it, but it should be compatible as it uses Wavecom chipset and serial port interface.

There are also Serial-To-IP adapters existing and with the latest version of smsd TCP/IP connection can be used. As far as I remember, some are currently using this kind of a devices, but I do not have details available . Behind the Multi-Serial or Serial-To-IP adapters there are traditional modems used. This requires a cabling, but on the other hand, devices are cheap and can be easily replaced, even on the fly.

Many users of SMSTools3 use couple of USB modems with a required number of hub's which are powered externally. For example a system equipped with 32 modems exists, and works just fine. Those modems are about 100€ each, but I do not remember the brand.

In some system I use Moxa interface (8 * RS-232) and Telit modules, but I do not explicitly recommend any particular device.

Kettu wrote

Is it possible Keke to have live consulting if I am ready to pay for it? Probably hour or two would make it clear what to do if I prepare my questions properly.

Everything is possible, especially if you're willing to make a donation. .

If you want to, you can send an initial description of your system to me using e-mail. I can then think how to proceed. Details in a Private block:

Hidden private text.