ITU-T Q.731.1 PDF

Name:
ITU-T Q.731.1 PDF

Published Date:
07/01/1996

Status:
[ Active ]

Description:

Stage 3 Description for Numbering Identification Supplementary Services Using SS No. 7: Direct-Dialling-in (DDI) - Series Q: Switching and Signalling; Specifications of Signalling System No. 7 - ISDN Supplementary Services

Document status:

Active

Format:

Electronic (PDF)

Delivery time:

10 minutes

Delivery time (for Russian version):

200 business days

SKU:

INCLUDES SECTION 8

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