![](/images/new-backgrounds/1299578/299578133x1.webp)
Chapter 5: Configuration
Dial 384K
When the ISU 512 is configured for Dial 384K service the following parame- ters are automatically preset:
Service type | ISDN dial line |
Automatic answering | Enabled |
ISDN call type | 64 kbps data |
Dial options | Front panel |
Maximum bit rate | 384 kbps |
DTR options | Ignore |
Disabled | |
Disabled |
Dial 448K
When the ISU 512 is configured for Dial 448K service the following parame- ters are automatically preset:
Service type | ISDN dial line |
Automatic answering | Enabled |
ISDN call type | 56 kbps data |
Dial options | Front panel |
Maximum bit rate | 448 kbps |
DTR options | Ignore |
Disabled | |
Disabled |
Dial 336K
When the ISU 512 is configured for Dial 336K service the following parame- ters are automatically preset:
Service type | ISDN dial line |
Automatic answering | Enabled |
ISDN call type | 56 kbps data |
Dial Options | Front panel |
ISU 512 User Manual | 51 |