My app will work as a middle-man.
diagram:
(1.1) user1-phone -> [smsc1] -> MYAPP -> [smsc2] -> user2-phone
(1.2) user2-phone <- [smsc1] <- MYAPP <- [smsc2] <- user2-phone
(2.1) user3-phone -> [smsc1] -> MYAPP -> [smsc2] -> user2-phone
(2.2) user3-phone <- [smsc1] <- MYAPP <- [smsc2] <- user2-phone
Is there a way to getting some sort of identification or sequence
numbers so that I can identify whose number to send a messages coming
from another number. Like in the diagram above, I will know that
whenever user2-phone sends a reply (without special commands, just
normal reply text) to a message sent by user3-phone it is user3-phone
that will really receives it and not user1.
