[Moved]: Voice transceiver module

Hi
I am currently doing a project which is basically voice record and playback but the playback is at a different place(at a range of over 500m) at different time(by scheduling).So now am thinking about connecting ISD15100 out to ATMEGA16 adc input and then use HT12E/D encoder/decoder module and RF transceiver module for voice transmission.Will this method actually work?Or should I chose some voice transceiver module instead?

Can you please give some suggestions?

Depends on if the playback at the other location should happen immediately after the recording, or any time later.
In the first case use any kind of transmitter-receiver to send the recording signal to the playback site.
In the second, use a voice memory to record, then later to replay the record at the other site like in the first case. Recording should be done at the "other site" in both cases