How to connect SMSC server using SMPP from PHP

[eluser]Sudz[/eluser]
I am trying to connect SMSC server using SMPP from PHP to send and receive sms. It would be easy if I can find some good php classes or already built script so that I don't have to bother in details?

so, does anyone have experience with this or at least can suggest me which php class or script to use?

[eluser]Sudz[/eluser]
[quote author="chen" date="1309442408"]Our people have followed false prophets. We must, and we shall, return to proven ways -- not because they are old, but because they are true. We must, and we shall, set the tides running again in the cause of freedom.freedom balanced so that order lacking liberty [sic] will not become the slavery of the prison shell [cell]; balanced so that liberty lacking order will not become the license of the mob and of the jungle. http://www.nikejordantoyou.com/ CF[/quote]

What is this?