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Advanced Communications System
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Form G3—Direct Inward Dialing (DID)
Form G3—Direct Inward Dialing (DID) 0
Enter the following information if the system will use DID.
1. What are the expected number of digits from the T1 service provider?
2. What extension will be the DID Backup Extension?
3. What DID numbers did you purchase from the T1 service provider?