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Table of Contents
80-99208-1 Rev. D vii
Dormant Mode Commands ...................................................................... 6-48
Set Dormant Mode Timeout Value (+CTA) ...........................6-49
Packet No Dial ($QCPKND) ..................................................6-50
SMS Commands ....................................................................................... 6-51
SMS Move/Delete ($QCSMSM) ..............................................6-51
SMS Print ($QCSMSP) ..........................................................6-52
SMS Lock ($QCSMSL) ...........................................................6-56
SMS Alert ($QCSMSA) ..........................................................6-57
SMS Info ($QCSMSI) .............................................................6-58
Error Log Services Commands ................................................................ 6-59
Retrieve Error Log ($QCERR) ...............................................6-59
Clear Error Log ($QCCLR) ....................................................6-60
Service Status Commands ....................................................................... 6-61
Service Alert ($QCSA) ............................................................6-61
Service Status ($QCSTATUS) ................................................6-62
Special Calls and Services Commands.................................................... 6-64
Time of Day ($QCTOD) ..........................................................6-64
Position Location Service ($QCPLS) .....................................6-66
Markov Statistics ($QCMSTATS) ..........................................6-68
Set Mode ($QCMODE) ...........................................................6-69
Protocol Stack Modification Commands ................................................. 6-70
TCP Stack Changes ($QCTCP) ..............................................6-70
Use Van Jacobsen Header Compression ($QCVJ) ................6-73
Integrating GSP-1620 Modems
into OEM Products .................................................................................7-1
Integrating Modems into Products............................................................ 7-2
Modem Mechanical Description ...............................................7-3
Modem Board Layout .........................................................7-3
Modem Dimensions and Weight ........................................7-6
Modem Antenna Connectors ....................................................7-6
Data and Control Ports ............................................................7-6
DTR/DSR Signal and Power On/Off ..................................7-7
Changing Data and Control Port Configuration ...............7-8
Control Port Signals ...........................................................7-8
Data Port Signals ................................................................7-9
DB-25 Data and Control Port Pinouts ...............................7-9
Diagnostic Port .......................................................................7-12
Diagnostic Port Pinouts ....................................................7-13