Operating system name and version: CentOS 5.5
Version of smsd: Latest
Smsd installed from: sources
Name and model of a modem / phone: ?
Interface: ?

We need to setup an SMS gateway which can handle around 100000 users. I am a new to this, and need some advice on what modem/model and interface will be suitable for this requirement.

Thanks,
Vishy

I do not recommend any exact modem/model, but usually modems based on Wavecom chip are good. Serial interface is often more reliable than USB. With large number of devices a LAN modem could be a good choice.

Sending of SMS takes about 5 - 12 seconds. With 64 modems on single server about 19000 - 46000 can be sent per hour. Is this enough for your application?

Also each SIM will have it's own GSM number and it cannot be changed. Is this acceptable?

I guess the information is sufficient. Request you to suggest some make(s). I will checkout for the relevant models.

Thanks,
Vishy

Keke, appreciate if you could give some info (make and model) on LAN modem that work well with SMSTools. TIA.