Network Router User Manual

30 Synchronous Mode Operation
Syntax Command with
Parameters*
Description
CRN CRN <dialstring>** Call request with number
provided.
CRS CRS n Call request with number from
memory, 0 # n # 49;
n is the memory location.
PRN PRN n; <number> Saves <number> to address n
(0 # n #49).
RLN RLN*** Requests list of all stored
numbers.
DIC DIC Ignores incoming call.
CIC CIC Accepts incoming call.
CFI CFI XX Call failure indication:
ET Engaged Tone.
NS Number is not stored.
RT RING Tone.
AB Abort Call.
NT Answer Tone is not
detected.
INC INC Incoming call.
VAL VAL Valid.
INV INV Invalid.
LSN LSN n; <number> List of stored numbers.
(Response to RLN)
RST RST Changes to the asynchronous
AT command mode.
Clock Options
Synchronous data must be transmitted and received with a common
timing clock. This timing clockis used to transmit data from the
DTE to the modem which modulates the data according to this
clock. The receiving modem recovers the clock and data from the