General DataComm 060A027-001, Installation & Operation Manual

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060R122-000 SpectraComm Dual V.34 Modem 5-1
Issue 15 Installation and Operation
Chapter 5:
V.25
bis
Command Set
Operation
V.25 bis Protocol Overview
This chapter describes the operating procedures for the Dual V.34 Modem when using the
ITU-T (formerly CCITT) V.25 bis compatible command protocol. Although the AT command set
is the primary command set for configuring the modem, the modem provides an enhanced ITU-T
V.25 bis command protocol that permits you to configure modem dial parameters and establish data
communications.
After configuring the modem by using the AT command set, use the
%V
n command to switch to the
V.25 bis command set. Table 5-1 summarizes the V.25 bis compatible command set.
Table 5-1 V.25 bis Command Set Summary
Command Type Name Command Page
Configuration
Commands AT Command Set PRS AT 5-4
Automatic Answering PRS AA 5-4
Connect Message Inhibit PRS CM 5-5
DTE Data Rate PRS DR 5-5
Handshake Mode PRS HM 5-6
Store Phone Number to Cell PRN 5-4
Synchronous Timing PTM 5-7
Termination Character PRS TR 5-7
Write Option Settings to User Configuration Profile NVW 5-4
Communication
Commands Call Requested Number CRN 5-7
Call Requested Stored Telephone Number CRS 5-8
Connect Incoming Call CIC 5-7
Disconnect Incoming Call DIC 5-8