GSM TELEPHONE INTERFACE
| The GSM telephone interface allows
access to other telephone users where no landline exists.
It can be used with any ordinary 2W DTMF telephone handset.
| In 4 wire mode it can be linked to
a sound desk for "phone-in" or into a talkback system for remote
Outgoing dialling can be performed from the handset or via the 4 wire audio using standard DTMF signalling.
|Auto mode allows auto answering of incoming calls for connection to a recorder to allow unattended report collection.|
|Instead of connecting a single handset it can even be linked into a PABX exchange line port to give all personnel access to the outside world.|