V2 GSM       Installation Manual 
Pyronix Ltd                   Page: 27 
5.33 RESET TO FACTORY DEFAULTS [607] 
Press the [ or ] keys to scroll to 
‘RESET TO FACTORY DEFAULTS’ 
or enter ‘607’.  
Press B or T to choose between 
Yes or No or select the number: 
0 = No = Default 
1 = Yes.  Press t 
5.34 SIM TELEPHONE NUMBER [608] 
Press the [ or ] keys to scroll to 
‘SIM TELEPHONE NUMBER’ or 
enter ‘608’. NOTE: This is used to 
enable the V2 time and date 
Enter the SIM telephone number, 
press t. 
5.35 ENABLE JAMMING DETECT [609] 
Jamming detect can only work if 2 x V2 GSMs are installed to work in conjunction with 
each other. The V2 GSMs will then need to be assigned ‘Master’ and ‘Slave’.  
The jamming feature works by the V2 GSM ‘Slave’ calling the Master after a programmed 
time (see 5.37 jamming time window). If the Master receives the call successfully, 
operation is continued as normal. . Please note when a successful call is made from the 
Slave to the Master, it is a non-chargeable call. 
If a jamming signal does occur on the slave V2 then the master will make a jamming 
message call, or that the Master has lost its power, a call will be charged to the SIM card 
of the ‘Slave’ every time it tries to call the Master. Please see the disclaimer message on 
page 44. If the Master hasn’t received a call from the Slave, a jamming message/call will 
be sent. (see ‘Play/Rec Jamming Message’ on page: 11) 
Please note to enable this ‘Test Calling’ must be enabled on an input (see ‘Tel Number 
Input Allocation’ on page 19). 
 
Press the [ or ] keys to scroll to 
‘ENABLE JAMMING DETECT’ or 
enter ‘609’.  
Press B or T to choose between 
Yes or No or select the number: 
0 = Disabled = Default 
1 = Master 2 = Slave 
Press t