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This section describes the information elements which may be presented by the "

" URC after opening an

Internet service. See also 

The tables contain the 

 and, if applicable, a specific 

. If marked with *) the pre-

cise text related to a 

 varies greatly depending on the scenario and the implementation of the

remote server. In these cases, only a brief explanation of the scenario can be found in the column "Description". 

The following table lists URC information elements which may be returned by all supported services. It should

be noted that TCP/IP socket problems may occur in all Internet service connections (Socket, FTP, HTTP, POP3

or SMTP). 

Description

URC Information Elements Returned by the TCP/IP socket
2 

Socket error: Invalid socket descriptor

3 

Socket error: Bad access specified

4 

Socket error: Invalid operation

5 

Socket error: No free socket descriptors

6 

Socket error: The operation would block

7 

Socket error: A previous attempt at this operation is still 

ongoing

8 

Socket error: Socket is not bound

9 

Socket error: The supplied buffer is too small / large

10 

Socket error: Flags not supported

11 

Socket error: Operation not supported

12 

Socket error: The address is already in use

13 

Socket error: The network is unavailable

14 

Socket error: An established connection was aborted

15 

Socket error: Remote host has reset the connection

16 

Socket error: No buffer space available

17 

Socket error: The socket is already connected

18 

Socket error: The socket is not connected

19 

Socket error: Socket has been shut down

20 

Socket error: Connection timed out

21 

Socket error: Remote host has rejected the connection

22 

Socket error: Remote host is unreachable

23 

Socket error: An unexpected error occurred

24 

DNS error: Host not found

25 

DNS error: An error occurred that may be transient; a fur-

ther attempt may succeed.

26 

DNS error: An unrecoverable error occurred

General URC Information Elements
46 

Fatal: The service has detected an unknown error