
Chapter 10 – Internet Service Commands
Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 174
10.13.1 Information Elements Related to the Service Application
The following table lists URC information elements which may be returned by all supported services within the
"^SIS" URC and the command response of AT^SISE. It should be noted that TCP/IP socket problems may occur in
all Internet service connections (Socket, FTP, HTTP, POP3 or SMTP).
<urcInfoId> <urcInfoText> Description
Information Elements Returned by the TCP/IP socket
2 Invalid socket descripto
Socket erro
3 Bad access specified Socket erro
4 Invalid operation Socket erro
5 No free socket descriptors Socket erro
6 The operation would block Socket erro
7 A previous attempt at this operation is still ongoing Socket erro
8 Socket is not bound Socket erro
9 The supplied buffer is too small/large Socket erro
10 Flags not supported Socket erro
11 Operation not supported Socket erro
12 The address is already in use Socket erro
13 The network is unavailable Socket erro
14 An established connection was aborted
(transmission time-out or protocol error)
Socket erro
15 Remote host has reset the connection Socket erro
16 No buffer space available Socket erro
17 The socket is already connected Socket erro
18 For TCP/IP sockets, the socket is not connected Socket erro
19 Socket has been shut down Socket erro
20 Connection timed out Socket erro
21 Remote host has rejected the connection Socket erro
22 Remote host is unreachable Socket erro
23 An unexpected error occurred Socket erro
24 Host not found DNS erro
25 An error occurred that may be transient; a furthe
attempt may succeed.
DNS erro
26 An unrecoverable error occurred DNS erro
General URC Information Elements
46 Fatal: The service has detected an unknown erro
47 *) Indicates that the remote
service has closed the
connection. The host shall close
the service.
48 Remote peer has closed the connection Remote peer has closed the
connection unexpectedly, and
no data are available. The host
shall close the service.
Note that the "^SIS" URC only
indicates the <urcInfoId>, but
the AT^SISE command
indicates both the <urcInfoId>
and the <urcInfo-Text>.
49 Fatal: No memory is available for service action
50 Fatal: Service hs detected an internal error.
80 Connection profile not defined.
84 PPP LCP FAILED PPP erro
85 PAP Authentication failed PPP erro
86 CHAP Authentication failed PPP erro
87 IPCP failed PPP erro
Warnings
4001 Applies only to interactive text
mode: Indicates that number of
input characters is greater than
<cnfWriteLength>.
General Information Elements
6001 General progress information
for connection setup.
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