True number portability and advanced call screening in a...

IEEE Communications Magazine 1999 Vol. 37; Iss. 7

True number portability and advanced call screening in a SIP-based IP telephony system

Dalgic, I., Borella, M., Dean, R., Grabiec, J., Mahler, J., Schuster, G., Sidhu, I.
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Volume:
37
Year:
1999
Language:
english
DOI:
10.1109/35.774887
File:
PDF, 621 KB
english, 1999
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