Multitech MultiModem Cell MTCBA-C1 User's Guide Page 122
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Chapter 20 – Host Application Scenarios
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C) 122
TCP Server Example
The device can also act as a server and wait for incoming connections. In this example, a listening socket is
opened. When a connection is established from a client, the module receives an unsolicited response. When the
client sends data, another unsolicited response is received. The application switches the module to on-line data
mode to read the received data. The client closes the connection and the module receives another unsolicited
response.
at+wipbr=4,6 // open PPP bearer
OK
+WORG: #777
+WCNT: 33
+WIPBR: 6,1
+WEND: 25
AT+wipbr=3,6,15 // find our IP address
+WIPBR: 6,15,"75.251.5.204"
OK
at+wipcreate=3,1,80,5,8 // create TCP listen socket on port 80 as connection 1
OK
+WANS: 2
+WCNT: 33
+WIPACCEPT: 1,5 // incoming connection request. Connection 5 active.
+WEND: 29
+WANS: 2
+WCNT: 33
+WIPDATA: 2,5,8 // 8 bytes available on TCP connection 5.
+WEND: 29
at+wipdata=2,5,2 // enter on-line data mode on connection 5
CONNECT
hi there // received data
NO CARRIER
+WANS: 2
+WCNT: 33
+WEND: 29
+WIPPEERCLOSE: 2,5 // peer closed connection 5
+WANS: 2
+WCNT: 33
+WEND: 29
at+wipclose=3,1 // close listening socket
OK
at+wipbr=5,6 // close PPP bearer
OK
+WORG: #777
+WCNT: 33
+WIPBR: 6,0
+WEND: 29
- 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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