SMS/MMS on TCP/IP modem

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Mads Trolle
New member
Username: Mads

Post Number: 1
Registered: 07-2015
Posted on Monday, July 20, 2015 - 01:43 pm:   

Hi,

Do you have a list of supported TCP/IP modems that can receive SMS and MMS

What I want is a virtual server, that do not have access to normal USB or Serial modems, and I don't want to use android phones on a wireless network.

Can you recommend any modem?
Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 5372
Registered: 08-2008
Posted on Monday, July 20, 2015 - 03:16 pm:   

Hi,

There are TCP/IP modems that will work for SMS, but not for MMS. (Theoretically, if such a modem provided a Windows virtual COM port driver, it would work. I've seen references to such software before, but there is nothing we have tested.)

Overall, if MMS is a consideration, the Android phone over WiFi is almost always preferable for the following reasons:

1.) Some mobile operators wil not provision MMS support if they detect that the device is a modem.

2.) If you are using multiple modems connected to the same mobile operator, with conventional modems, only one can be active at a time for sending or receiving MMS (multiple modems can be active, but they block while another modem is processing an MMS transaction, NowSMS manages this automatically). With the Android devices, there is no such limit, and all devices can process MMS transactions simultaneously.

3.) Higher performance with Android devices when LTE is available. LTE modems often lack AT command support.

The Android devices do need to be on WiFi. The NowSMS server does not necessarily have to be on WiFi, it just needs to be able to connect to the Android devices over IP.

--
Des
NowSMS Support
Mads Trolle
New member
Username: Mads

Post Number: 2
Registered: 07-2015
Posted on Tuesday, July 21, 2015 - 12:28 pm:   

Hi,

Thank you for the answer.

An android device is a possibility, but i really dont want it to be over a wifi. (security and stability concerns)
Would it work with a android device with a ethernet (rj45) adapter? Thinking a Asus Transformer Pad and a BobjGear USB to RJ45 Ethernet Adapter?
Or do you know of any other device that could do the same?

And do you have some dokumentation for the api on the android device? I mean is it possible to get stats from the phone with http calls?
Des - NowSMS Support
Board Administrator
Username: Desosms

Post Number: 5373
Registered: 08-2008
Posted on Tuesday, July 21, 2015 - 04:51 pm:   

Hi,

That is not a configuration we have tested.

I discussed this with one of our engineers ... his primary concern is whether or not the tablet will support SMS. So I'd suggest trying it with WiFi first. A second related concern is that if the SIM in the tablet is provisioned as a tablet, the operator might not provision the SIM for MMS.

So try it over WiFi first.

Regarding the USB to Ethernet adapter, that would probably work. The Android app side will not display the Ethernet IP address, and it may turn the WiFi radio on (as long as you have no remembered WiFi networks, that should be ok). It may also be necessary to manually configure the device IP address, as NowSMS might not discover it.

My idea would be to establish a separate WiFi access point for the devices. Restrict access by MAC address.

On the NowSMS server side, you can have multiple network interfaces, so there can be one network connection to a private network for the devices.

There is no API to query the device, but there is an API to query status from NowSMS, which will report statistics. See http://www.nowsms.com/xml-status-query-for-smsc-connection-status-and-statistics

--
Des
NowSMS Support