To change the connect mode the CONN command is sent by the master phone with the
action CL or OP. To disable connect on call the NOne action is sent.
e.g. CONN CL connect when input high
CONN OP connect when input low
CONN NO do not connect call
4.4 Relay Activation Mode
When a valid call is received the relay can be set to activate for a set period of time (set
by the RLYTIME command), to activate whilst the caller is ringing or to toggle between
states on each call. By default the relay mode is set for timed (pulsed) activation. To
switch to toggle mode the following message is sent to the system by the master number:
RLYMODE TOG GLE enables toggle mode
To activate the relay for however long the caller rings (n.b. turn off voicemail!)
RLYMODE RING relay active whilst phone rings
To revert to timed (pulsed) mode the following message is sent:
RLYMODE PULSE relay Normally Open (NO)
4.5 Relay Activation Time
The RLYTIME command is used to adjust the time the relay is active following a call when
RLYMODE is set to PULSE. By default the relay time is set to 3s. The time can be set from 1s
to 999 seconds or 1 to 999 minutes using this command.
To change the activation time the master number sends a SMS text message as follows:
RLYTIME seconds.
e.g. rlytime 10. 1 second activation time
rlytime 250s 250 second activation time
Rlytime 1m. 1 minute activation time
RLYTIME 960m. 16 hour (16 x 60mins) activation time
4.6 OPEN/ON & CLOSE/OFF Commands
The OPEN and ON commands are used to activate the relay with a SMS text message.
The CLOSE and OFF commands deactivate the relay, whether activated by the OPEN or
ON command or a call. When the OPEN command is sent without any additional instruc-
tions the relay is activated indefinitely. When sent with a value and m(inutes) or s(econds)
parameter the relay activates for a set period of time. The maximum number length is
three characters therefore the timer is limited to 999 seconds or 999 minutes. If the m or s
parameter is not sent then the timer value is read as the number of seconds.
The ON and OFF commands are identical to the OPEN and CLOSE commands respec-
tively and can be used interchangeably.
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