Selecting V.120 For Germany National Isdn (1Tr6) - ZyXEL Communications omni TA128 User Manual
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Also See for omni TA128:
- User manual (169 pages) ,
- Quick start manual (33 pages) ,
- Brochure & specs (2 pages)
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Selecting V.120 for Germany National ISDN
(1TR6)
1TR6 data connections are achieved by setting the Service
Indicator to 7 (Daten_bertragung 64Kbps) and the Additional
Information octet is used to select B channel protocols. Since
there is no pre-defined code for asynchronous V.120, TA128 uses
the synchronous V.120 code to fill in the additional information
octet. This approach might not work all the time.
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