Fastest configuration possible? (SMS speed)

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SMS & MMS Technical Forum » NowSMS Support - SMS Issues (Product Support Only) » Archive through June 02, 2006 » Fastest configuration possible? (SMS speed) « Previous || Next »
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Roar Nissen
New member
Username: Roar

Post Number: 1
Registered: 05-2006
Posted on Wednesday, May 10, 2006 - 11:06 am:   

Hi
I’m currently developing an SMS-service and I want to prepare the system for a heavy load of users.

To able to send (and receive) as many SMS as possible pr. minute I’m trying to create the best configuration with NowSMS possible. Until now I’ve used a T610i as a modem, which gives me a speed at about 15 sms/minute(with SMS via GPRS).

Can I exceed this speed by buying a ‘real’ GPRS modem? E.g. the Siemens MC35i Terminal. Can you recommend another modem? I read somewhere else on the site that you have experienced speed up to 60 SMS/minute, how was this done?

I’ve tried sending SMS via a 3G telephone, but still ‘only’ with a speed of aprox 15 SMS/minute. I guess GPRS and 3G gives you the same speed when it comes to sending SMS.

Kind regards.
Roar Nissen
New member
Username: Roar

Post Number: 2
Registered: 05-2006
Posted on Wednesday, May 10, 2006 - 12:30 pm:   

A related question.

What is the best way to measure the speed? Is it the SMSOUT-log? Is the time stamp made in the log when the message has left the modem? Or is it made when the message is processed in NowSMS and passed on to the phone? If it is made when the message has left the modem, is pretty easy to measure the speed, so I hope that’s your answer :-)
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 5924
Registered: 10-2002
Posted on Thursday, May 11, 2006 - 02:17 pm:   

Hi Roar,

While the modem makes some difference, the operator network is a bigger factor. (Whether or not they support SMS over GPRS, and how quickly the network will accept SMS messages.)

I did a lot of early SMS over GPRS tests using a T68i as a modem, as well as a T630. Both of those were capable of 30 messages per minute if the operator network supported it. So I would expect your T610 might be getting slowed down by the operator network.

I saw 60 messages per minute using a Sierra Wireless Aircard, and a Multitech GPRS modem (Wavecom chipset).

The timestamp records when the message has been accepted by the modem.

-bn
Roar Nissen
New member
Username: Roar

Post Number: 3
Registered: 05-2006
Posted on Monday, May 15, 2006 - 09:50 am:   

Ok, thanks a lot.

I will try different network suppliers and hope to i reach 30 SMS/min. Afterwards ill buy a multitech modem(any specific one?)

Will the modem only accept a new SMS if the SMS before it has been sent? (the only way i can use the timestamp to measure the speed)
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 5936
Registered: 10-2002
Posted on Tuesday, May 16, 2006 - 08:04 pm:   

As far as Multitech modems go, I'm aware of 4 basic models. Basically the choices are combinations of different frequencies with either USB or serial connections.

The frequency choices are either 900/1800 (most of the world) or 850/1900 (North America).

Personally, I prefer serial connections when it comes to modems, because generally speaking the drivers seem to be more stable than USB drivers. (I have not personally used the Multitech USB models, so this comment is not directed toward their drivers, it is directed toward USB drivers in general.)

The Multitech modems use the Wavecom chipset, so if you run across any Wavecom modems those are great.

The modem will only accept a new SMS if the previous SMS has been accepted by the operator SMSC (e.g., sent from your system ... the SMS protocol itself is store-and-forward, the modem can submit another message to the SMSC after the SMSC accepts the message into its queue for delivery).

-bn

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