http://www.sms-mms.gr/characteristics.php

episis:
Aircall http://www.aircall.ch/sms/

Business SMS http://sms.business.gr/

CustomPhones http://www.customphones.co.uk/index2.htm

Iguana SMS http://www.apic.com.sg/iguana/smsmain.htm

M-DataPlus http://www.mdataplus.gr/general/sms/index.htm

MTN http://www.mtnsms.com/

OsbyMikro http://home.swipnet.se/OsbyMikro/smspage.htm

Otenet http://web2sms.otenet.gr/index.asp?myparam=1

Pathfinder http://sms.pathfinder.gr/

Quios http://www.quios.com/

SMS Pathfinder http://sms.pathfinder.gr/

SMS.Gt http://sms.gt.com.ua/

SMS.Ru http://www.sms.ru/en/

XSMS http://www.xsms.net/

Your Mobile http://www.yourmobile.com