ITU Q.953.1:1992

ITU Q.953.1:1992 Isdn Stage 3 Description For Call Completion Supplementary Services Using Dss 1 - Call Waiting

Download

PDF AVAILABLE FORMATS IMMEDIATE DOWNLOAD
$17.50 tax incl.

$39.77 tax incl.

(price reduced by 56 %)

1000 items in stock

Contact us