Specifications

UC864-E/G AT Commands Reference Guide
80304ST10041a Rev. 3 - 18/07/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 53 of 259
3.5.3.7 S Parameters
Basic commands that begin with the letter Sare known as S-Parameters”. The number following
the Sindicates the “parameter number” being referenced. If the number is not recognized as a valid
parameter number, an ERROR result code is issued.
If no value is given for the subparameter of an S-Parameter, an ERROR result code will be issued
and the stored value left unchanged.
Note: what follows is a special way to select and set an S-parameter:
1. ATSn<CR> selects n as current parameter number. If the value of n is in the range (0, 2,
3, 4, 5, 7, 10, 12, 25, 30, 38), this command establishes Sn as last selected parameter.
Every value out of this range and less than 256 can be used but has no meaning and is
maintained only for backward compatibility with landline modems.
2. AT=<value><CR> or ATS=<value><CR> set the contents of the selected S-parameter
Example:
ATS7<CR> establishes S7 as last selected parameter.
Reference V25ter and RC56D/RC336D
3.5.3.7.1 Number Of Rings To Auto Answer - S0
S0 - Number Of Rings To Auto Answer
ATS0=[<n>] Set command sets the number of rings required before device automatically
answers an incoming call.
Parameter:
<n> - number of rings
0 - auto answer disabled (factory default)
1..255 - number of rings required before automatic answer.
ATS0? Read command returns the current value of S0 parameter.
Reference V25ter