ISDN Configuration Commands
AT!On | Outgoing Call Type. Specifies the default call type for outgoing calls when a user | |
| enters an ATD command without a special modifier. Use of a modifier overrides this | |
| parameter. | |
| n=0 | Data call using protocol set in AT%A2=n (default). |
| n=3 | Data over voice bearer capability call (North America only) |
| n=4 | Transparent over voice (Audio) (reserved for RVSCOM). |
| n=5 | Transparent over voice (speech) (reserved for RVSCOM). |
| The n=4 and n=5 options (transparent over voice) send and receive voice data | |
| unmodified to and from the ISDN B channel and the DIVA T/A. When no data is being | |
| transferred, the protocol fills the outgoing ISDN line with ‘voice silence’ bit patterns. | |
| For more details, refer to the RVSCOM documentation. | |
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AT!X56=n | Delay between 64K data call failure and 56K data call attempt. If a 64K data call | |
| fails due to network congestion or if a service or option was not available or not | |
| implemented, a 56K data connection is automatically attempted. This command | |
| specifies the delay, in seconds, before the 56K attempt is made. | |
| Values: | |
| on region); 255 (do not attempt 56k data call retry). | |
| Default: Australia & Japan, no retry (n=255); all other regions, immediate retry (n=254). | |
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