Cheapest sms with an international sim card?

[inquisitor]

Originally Posted by DRNewcomb

I'm not sure about FishText but as I recall smsBug only takes about 100 bytes to send a SMS. If you only send a few per day it looks like 02 would never charge you for the data.

100 bytes? That's impossible. I doubt there's any compression algorythm that can shrink 160 bytes of text + overhead (e.g. recipient's number) to 100 bytes. Further you forget all the header information of the HTTP-request on TCP/IP-level. I fear you can't send any SMS over TCP/IP with less than 512 bytes.

Take this example: the request has 50 bytes, the response 286 bytes and that's without those 160 bytes, which need to be transferred and without the at-least 12-digit number of the recipient. Furhter the request should contain some authentification information. So no way to stay below 512 bytes!

[DRNewcomb]

Originally Posted by inquisitor

100 bytes? That's impossible. I doubt there's any compression algorythm that can shrink 160 bytes of text + overhead (e.g. recipient's number) to 100 bytes. Further you forget all the header information of the HTTP-request on TCP/IP-level. I fear you can't send any SMS over TCP/IP with less than 512 bytes.

OK. I was wrong. Here is the info from the smsBug FAQ:

Q: So how much GPRS traffic does smsBug typically use?
A: Below is a table of typical smsBug transactions and the traffic generated by them.

Registering (Part I) | 422 bytes in | 240 bytes out
Verifying password (Part II) | 420 bytes in | 188 bytes out
Sending a 160 character SMS | 422 bytes in | 500 bytes out
Synchronizing 5 Contacts | 709 bytes in | 194 bytes out
Requesting remaining credits | 422 bytes in | 155 bytes out
Setting Delivery Report status | 421 bytes in | 188 bytes iut
Purchasing credits | 422 bytes in | 260 bytes out