AT Commands
Nn Modulation handshake
This command controls whether or not the local modem performs a negotiated handshake at connection time with the remote modem when the communication speed of the two modems is different.
| N0 | When originating or answering, this is for handshake only at |
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| the communication standard specified by S37 and the ATB |
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| command. |
| N1 | When originating or answering, begin the handshake at the |
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| communication standard specified by S37 and the ATB |
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| command (default). |
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| During handshake, a lower transmission speed may be |
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| selected. |
| Result Codes: | |
| OK | n=0,1 |
| ERROR Otherwise | |
On | Return | |
| O0 | Instructs the modem to exit |
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| return to data mode (see AT escape sequence, +++). |
| O1 | This command issues a retrain before returning to |
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| data mode. |
| O3 | This command issues a rate renegotiation before returning to |
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| |
| Result Codes: | |
| OK | n=0,1,3 |
| ERROR Otherwise | |
P | Select pulse dialing | |
| This command configures the modem for pulse (non | |
| Dialed digits are pulsed until a T command or dial modifier is received. | |
| Tone dial is the default setting. | |
Qn | Result code control | |
| Result codes are informational messages sent from the modem and | |
| displayed on your monitor. Basic result codes are OK, CONNECT, RING, | |
| NO CARRIER, and ERROR. The ATQ command allows the user to turn | |
| result codes on or off. | |
| Q0 | Enables modem to send result codes to the computer |
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| (default). |
| Q1 | Disables modem from sending result codes to the computer. |
| Result Codes: | |
| OK | n=0,1 |
| ERROR Otherwise |
User’s Manual |