Description; Defined Values; Examples - Huawei MU509 At Command Interface Specification

HUAWEI MU509 HSDPA LGA Module
AT Command Interface Specification

15.9.2 Description

When a TCP/UDP link was closed by AT command IPCLOSE (linked is 1~5), the MT
will not send this unsolicited report to TE. Otherwise, the MT will send this unsolicited
report to TE.
When a TCP/UDP link was created by AT command IPOPEN, the MT will not send
this unsolicited report to TE. Otherwise, the MT will send this unsolicited report to TE.

15.9.3 Defined Values

<link_id>: specifies the ID of an established connection. The value ranges from 0 to 7.
0: Illegal ID
1–5: the ID of an established connection
6: Local server
7: Network
<state>: link state
0: The link is closed
1: The remote TCP link is accepted.
Others are reserved
<errcode>: error information
0: Link has been closed by remote or ME
1: Remote link has been accepted by MT
2: Network error
3: No idle link
4: Reject the remote request link in the transparent transmission mode
Others are reserved

15.9.4 Examples

There has been a link 1 for TCP connection as client. After the TCP server close the
connection, the ME will report:
^IPSTATE: 1,0,0
Issue 04 (2013-01-28)
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