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| Appendix A. AT Commands and | |
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S31 | DTE RTS | Controls operation of the RTS line. | |
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| 0=1 ms delay | |
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| 17=18 ms delay | |
S32 | DTE DSR | Controls the operation of the Data Set Ready | |
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| signal on the DTE connectors. | |
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| 0=Force DSR on always | |
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| 1=DSR off OOS + Test | |
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| 2=DSR off Link Down | |
S33 | DTE CD | Controls the operation of the Carrier Detect | |
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| line on the DTE connectors. | |
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| 0=Force CD on always | |
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| 1=CD is active during a call (Normal Opera- | |
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| tion) | |
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| 2=Off with LOCD | |
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| 3=Off link down | |
S34 | DTE DTR | Determines how the Express XRT responds | |
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| to changes in DTR. This is a | |
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| ister. | |
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| 0=Ignore DTR | |
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| 1=Force AT command mode when DTR is | |
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| off | |
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| 2=Dump incoming call when DTR is off | |
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| 4=Hang up incoming call when DTR is off | |
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| 8=Hang up outgoing call when DTR is off | |
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| 16=Answer incoming call when DTR is on | |
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| 28=Idle when off | |
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| 32=Dial SN0 when DTR is on | |
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| 64=Dial SN0 when DTR transitions from off | |
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| to on | |
S36 | Inactivity Timer | 0=Off | |
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| connect | |
S37 | Conference/Call | Flash hook button defaults to: | |
| Waiting | 0=Call waiting | |
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| 1=Call conferencing | |
S40 | BOND TXINIT | Specifies the number of seconds the origi- | |
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| nating endpoint attempts to detect the | |
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| Async BONDING negotiation pattern from | |
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| the answering endpoint before deciding the | |
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| Async BONDING call has failed. | |
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| 0 to 255, 10 sec is default. |
Express XRT User Guide | 65 |