• TIA TIA-1126.553

TIA TIA-1126.553

S.R0125-553-0 v1.0 VoIP Supplementary Services Descriptions: Customized Ring Back Tone

Telecommunications Industry Association , 07/01/2008

Publisher: TIA

File Format: PDF

$35.00$71.00


W/D NO S/S * X-REF ETSI TS 122.173

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