38 — Installation & Programming Guide
Dialling Modes
BS 6789 : section 3.1 defines three dialling modes (Modes 1, 2 and 3). Modes 2 and 3
cover autodialling devices which play recorded messages. Mode 1 provided by Smartdial
may be used for all non-emergency (non 999/non 112 ) calls. Mode 1 specifies that the
device must drop the line (hang - up) within 1 minute if it receives the standard BT tones
for number unobtainable, Busy, Equipment engaged or special information. Calls not
covered by modes 1, 2 or 3 must not be made. Alarm calls, since they use Mode 1
cannot be, MUST NOT BE used for emergency 999/112 calls.
Available Facilities
All Digital Alarm Communicators, manufactured by GUARDALL LTD have been approved
for use with the following facilities...
* Alarm transmission and transmission/reception of configuration data,
* Automatic Call Initiation
* Series connection where a specific auxiliary socket is provided.
* Detection of initial proceed indication (dial tone).
* Automatic dialling using DTMF or Loop disconnect dialling.
* Automatic Call Answering.
* Stored number dialling.
* Timed Break Register Recall.
Any other usage will invalidate the approval status, if as a result, the operation of the
communicator ceases to conform to the standards against which they were tested and
approved.
