User guide

Part 4 – Commands for the SocketModem iCell, SocketModem IP, and MultiModem iCell Chapter 14
Universal IP AT Commands Reference Guide (Document S000457H) 76
Incoming Call Management Commands
#ACCEPT – Answer Incoming Call
Definition: This command directs the TCP/IP stack to answer an incoming call. When the TCP/IP stack
receives an incoming call, it sends over the serial port the “RING” messages. Depending on the
value of the ANSWERMODE parameter, the TCP/IP stack may answer automatically or not.
If ANSWERMODE is set to 0, it is the host that is responsible for answering the incoming call.
Once the physical layer is up, the TCP/IP stack runs.
The AT#CONNECTIONSTOP command ends the connection by going on hook.
Values: Read parameters:
ANSWERMODE
IPSPW
ISPUN
PPPMYIP
Syntax: AT#ACCEPT
Command Possible Responses
AT#ACCEPT
Note: Manual acceptance
of an incoming call
OK
Note: Beginning of the call setting process
CONNECT <speed>
Note: Modem speed negotiated between both sides
xxx.xxx.xxx.xxx
Note: IP address indication attributed to the TCP/IP stack
PPP OK
Note: The software is ready to run IP applications to send/receive data
AT#ACCEPT
Note: Manual acceptance
of an incoming call
NO CARRIER
Note: The modem handshaking process with the remote host is
interrupted or unsuccessful
AT#ACCEPT
Note: Manual acceptance
of an incoming call
PPP ERROR
Note: The PPP negotiation has failed (check ISPUN, ISPPW,
PPPMODE, and the configuration of the PPP peer)
#CONNECTIONSTOP – Stop Communication
Definition: This command directs the TCP/IP stack to end a communication previously established with a
CONNECTIONSTART command or AT#ACCEPT.
Values: No TCP/IP parameter is used for the execution of this command.
Syntax: AT#CONNECTIONSTOP
Command Possible Responses
AT#CONNECTIONSTOP
Note: Disconnect
OK