Making/Receiving Calls Near Impossible...

[koolksmart]

I'm running an iPhone 2G, 3.0, jailbroken with Redsn0w.
At first it was fine, but recently, my phone has been acting up. Almost every time I try to make a call, it goes through, and the other person can hear me, but i can't hear them. When I get a call, I can't hear the other person, they can hear me.
I end up having to receive 2 or 3 calls from the same person before it works. But now I don't think I can get any or make any calls. Any help?

[NeoNightmareX]

Try this.

Go into Settings > Notifications and turn Notifications off. Then go into Settings > Mail, Contacts, Calendars > Fetch New Data and turn Push off.

[koolksmart]

Try this.

Go into Settings > Notifications and turn Notifications off. Then go into Settings > Mail, Contacts, Calendars > Fetch New Data and turn Push off.

Fetch new data was already off. Turning off notifications did nothing.

[Piazza331]

Turn off 3G.

[NeoNightmareX]

It's a 2G phone.