Multitech MultiModem Cell MTCBA-C1 User's Guide Page 103
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Chapter 17 – TCP APP AT Commands
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C) 103
Service Status Unsolicited Response 3 +WIPERROR
Description: This unsolicited response indicates an error occurred while attempting to connect a socket to it’s
peer, or that an error occurred on the socket after the socket was created. The AT+WIPCREATE
command immediately returns OK after the command syntax is verified, therefore the unsolicited
response +WIPERROR is needed to indicate any error conditions when the socket can not
connect to the peer, or when the socket loses connection to the peer.
Response Syntax: +WIPERROR: <protocol>,<index>,<error>
Sample Responses
+WIPACCEPT: 1,5
Note: Server index 1 accepted a connection; resulting TCP client assigned to index 5
Response Values: <protocol>
1 UDP
2 TCP client
<index>
1-8 Socket or session identifier
<error>
+WIPERROR error codes and their descriptions are shown below.
<error> Meaning
100 Invalid socket descriptor
103 Address family not supported
107 No more sockets available for opening
108 Operation not supported
109 Address already in use
110 Destination address required
113 IP address changed, causing TCP reset
114 Socket not connected
115 Connection attempt refused
116 Connection attempt timed out
117 Connection reset
118 Connection aborted
119 Broken pipe
120 Network subsystem unavailable
124 Invalid operation
125 Domain Name Error or Host not found
126 Domain Name not found
127 Network is not opened
129 The DNS resolve system is already in use or Temporary error
133 No address for the domain name
201 Network subsystem establishment in progress
202 Network subsystem unavailable
203 PPP is closing
Last Socket Error Query +WIPERR
Description: The +WIPERR command is used query the last error that occurred within the socket subsystem.
Syntax: Command Syntax: AT+WIPERR?
Command Possible Responses
AT+WIPERR? +WIPERR: <error>
Values: <error> (See Service Status Unsolicited Response 3 for list of possible error indications)
0 No error found
- CDMA-C1 AT Commands 1
- Contents 3
- Chapter 1 – Introduction 7
- Chapter 2 – AT Commands 8
- Overview 8
- Command Types 9
- Command Format and Syntax 9
- Input Command Syntax 10
- Other Syntax 10
- Output Response Syntax 10
- Parameter Defaults 10
- Unsolicited Message Syntax 11
- Attention AT 12
- Repeat Last Command A/ 12
- Echo E 12
- Bits +WUSLMSK 13
- Chapter 4 – Identification 15
- Commands 15
- Chapter 5 – Query Commands 17
- Chapter 6 – Global 18
- Configuration Commands 18
- Save Configuration &W 19
- Chapter 7 – Status Commands 20
- Chapter 8 – Communication 26
- Set Diagnostic Port +WDMX 27
- Set DCD Signal &C 27
- Set DTR Signal &D 28
- Set DSR Signal &S 28
- Automatic Answer S0 30
- Command Edit Character S5 31
- Chapter 9 – Call Control 33
- Hang-Up Command H 34
- Answer a Call A 34
- Incoming Call +RING 35
- Emergency Mode +WSOS 37
- Call Answered +WANS 38
- Call Connected +WCNT 38
- Call Ended +WEND 39
- Call Originated +WORG 40
- CPHS Command +CPHS 40
- Call Forwarding +CCFC 42
- Send DTMF Tones +VTS 44
- Chapter 10 – Network Service 45
- Signal Quality +CSQ 46
- Band Preference +WBND 49
- Service Indication +WSRV 50
- Roam Preference +WRMP 50
- Default Cell Band +WDCB 51
- Roaming Indication +WROM 51
- Chapter 11 – Provisioning 54
- Control Commands 54
- Excess SPC Failures +WLCK 55
- Download PRL +DPRL 56
- Commit Changes +WCMT 58
- Set IMSI +WIMI 58
- Slot Cycle Index +WSCI 60
- SID and NID +WSID 60
- Chapter 12 – OTASP / OTAPA 61
- Commit Successful +WOTC 62
- SPL Unlocked +WOTS 62
- NAM Download OK +WOTN 62
- MDM Download OK +WOTM 62
- IMSI Download OK +WOTI 63
- PRL Download OK +WOTP 63
- Chapter 14 – Short Message 70
- Service Control Commands 70
- Read Message +CMGR 71
- List Message +CMGL 72
- Delete Message +CMGD 73
- Chapter 15 – Audio Commands 79
- Microphone Gain +VGT 81
- Speaker Gain Control +VGR 82
- Digital Gain Receive +WDGR 84
- Echo Cancellation +ECHO 86
- Speaker Driver Gain +WSDG 87
- Audio Loopback &T 88
- Chapter 16 – Data Commands 89
- R-SCH Selection $QCMIP 90
- MIP Selection $QCMIPP 91
- Chapter 17 – TCP APP AT 98
- Chapter 18 – Sleep Commands 107
- Builds) 111
- Chapter 19 – Antenna 111
- Commands (Not for IP and GPS 111
- +WANTPOLL 113
- Auxiliary GPS Power +WANT 115
- Scenarios 118
- Call Processing 119
- Sending Binary Data 120
- TCP Socket Examples 121
- TCP Server Example 122
- ATZ, and AT&F 123
- Chapter 22 – CDMA 128
- Terminology and Acronyms 128
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