Direct Inward System Access (DISA)Features
➤ To make an outgoing call with DISA
1. From outside the system, call |
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the DISA Exchange line |
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telephone number:___- |
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_____. |
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See the System |
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Administrator for this |
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number. |
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2. Listen for repetitive ringback | The dial tone is present for 10 seconds to allow direct | |
tone, then listen for dial tone. | dialling of a station internal number or Exchange line | |
Try again if you hear busy | access code. If a number is not dialled, the system | |
automatically causes the DISA Exchange line to ring at | ||
tone. | ||
telephones as a normal incoming call. Then, if the call is | ||
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| not answered within 15 seconds after the ringing starts, it | |
| disconnects. | |
3. Dial an Exchange line |
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number or line group access |
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code. See Table 1 on page |
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36. |
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4. If a DISA security code is | If the correct code is not entered, the call is disconnected. | |
required (see the System |
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Administrator), dial the code |
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and listen for Exchange dial |
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tone. |
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...or if a DISA security code | A timer tone plays (approximately four mins.) that both | |
is not required, you hear | parties hear after the call was made. | |
Exchange dial tone. |
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5. Press 0 to reset the timer for |
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four more minutes; |
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otherwise, the call |
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disconnects approximately |
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one min. after the tone. |
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6. Dial a telephone number. |
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22 | Strata CT Standard Telephone User Guide November 2001 |
