Can I do this with the Push Registry?

I need to write a midlet that will listen for an incoming message from the comm port on a Motorola i355 iden phone. I don`t care if the midlet is open or closed when the message comes in. Whichever would be fastest would be best. I'm using the phone to process a message and send another message back out through the comm port to a connected machine. I also don't have control over the message that is coming from the machine that the phone will be connected to. This will only be my 2nd J2ME application so I'm very new at this.

I have seen plenty of examples of using the push registry to do this for a socket and datagram (I don`t even know what a datagram is), but nothing for use with a comm connection. If anyone can steer me in the right direction, it would be greatly appreciated. Thanks.

[813 byte] By [Ifetayoa] at [2007-10-3 3:22:10]
# 1
Hi yes SIR u canthxsouvik
souvika at 2007-7-14 21:14:34 > top of Java-index,Java Mobility Forums,Java ME Technologies...
# 2
1st I'm a Mrs :-) and 2nd... How?
Ifetayoa at 2007-7-14 21:14:34 > top of Java-index,Java Mobility Forums,Java ME Technologies...