Universal Connect Call Flow; Answering And Originating Calls; Setting The Originate Call Type - 3Com 3C421600A Management Manual

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HAPTER DVANCED
Universal Connect
Call Flow
Answering and
Originating Calls
Setting the Originate
Call Type
M C
ODEM ONFIGURATION WITH
The RAS 1500 tries a number of calls and detection processes (Table 45).
Table 45 Universal Connect Call Flow
Attempt Call Type
1 64 Kbps
2 56 Kbps
3 38.4 Kbps
4 3.1 kHz Audio
When you set the RAS 1500 to Universal Connect and make or receive a
call, the RAS 1500 attempts a V.110 connection only if you set S67.0=1.
In Universal Connect answer mode, when V.110 is enabled, the RAS 1500
makes the V.110 attempt third in the Universal Connect sequence.
Use Table 46 to set the answer and originate call type.
Table 46 Answering Call Types
Setting
Autodetect
V.120 rate adaption only
V.110 rate adaption only
Modem
Clear channel synchronous only
Asynchronous to synchronous PPP only
X.75 connection only
If you set the call to a specific type (*V2=1-6) and the desired connection
cannot be made, the RAS 1500 does not negotiate for other types of
connections. Default configuration to V.120 with X.75 turned off.
You can set the originate call type for each B-channel. These commands
are only valid when auto detect is used (*V2=0).
These state of these new commands is saved in flash.
CLI/AT
COMMANDS
Protocol
V.120, X.75, or Synchronous
PPP
V.120, X.75, or Synchronous
PPP
V.110
V.34, V.FC, V.32 terbo, and
other analog call types
Command
AT *V2=0
AT *V2=1
AT *V2=2
AT *V2=3
AT *V2=4
AT *V2=5
AT *V2=6
Command
AT*U1
AT*U2
AT*U3