BS PD 6625:2000

PNO-ISC service description number 001. Completion of calls to busy subscriber (CCBS). Supplementary service

BSI Group , 09/19/2000

Publisher: BS

File Format: PDF

$95.00$190.00

Published: 09/19/2000

Pages: 22

File Size: 1 file

ISBN: 0580364070

Language: English

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