Version 7.2
175
Mediant 500 MSBR
User's Manual
17. Media
Bypass mechanism for V.34 fax transmission (see Bypass Mechanism for V.34 Fax
Transmission on page 175)
T.38 Version 0 relay mode, i.e., fallback to T.38 (see Relay Mode for T.30 and V.34
Faxes on page 176)
To configure whether to pass V.34 over T.38 fax relay, or use Bypass over the High Bit
Rate coder (e.g. PCM A-Law), use the 'V.34 Fax Transport Type' parameter
(V34FaxTransportType).
You can use the 'SIP T.38 Version' parameter (SIPT38Version) to configure one of the
following:
Pass V.34 over T.38 fax relay using bit rates of up to 33,600 bps ('SIP T.38 Version' is
set to Version 3).
Use Fax-over-T.38 fallback to T.30, using up to 14,400 bps ('SIP T.38 Version' is set
to Version 0).
Note:
•
Interworking of T.38 Version 3 is supported only for Gateway calls. For SBC calls,
the device forwards T.38 Version 3 transparently (as is) to the other leg (no
transcoding).
•
•
The CNG detector is disabled in all the subsequent examples. To disable the CNG
detector, set the 'CNG Detector Mode' parameter (CNGDetectorMode) to
Disable
.
17.2.3.1 Bypass Mechanism for V.34 Fax Transmission
In this proprietary scenario, the device uses bypass (or NSE) mode to transmit V.34 faxes,
enabling the full utilization of its speed.
To use bypass mode for T.30 and V.34 faxes:
1.
On the Fax/Modem/CID Settings page, do the following:
a.
Set the 'Fax Transport Mode' parameter to
Bypass
(FaxTransportMode = 2).
b.
Set the 'V.22 Modem Transport Type' parameter to
Enable Bypass
(V22ModemTransportType = 2).
c.
Set the 'V.23 Modem Transport Type' parameter to
Enable Bypass
(V23ModemTransportType = 2).
d.
Set the 'V.32 Modem Transport Type' parameter to
Enable Bypass
(V32ModemTransportType = 2).
e.
Set the 'V.34 Modem Transport Type' parameter to
Enable Bypass
(V34ModemTransportType = 2).
2.
Set the ini file parameter, V34FaxTransportType to 2 (Bypass).
To use bypass mode for V.34 faxes, and T.38 for T.30 faxes:
1.
On the Fax/Modem/CID Settings page, do the following:
a.
Set the 'Fax Transport Mode' parameter to
T.38 Relay
(FaxTransportMode = 1).
b.
Set the 'V.22 Modem Transport Type' parameter to
Enable Bypass
(V22ModemTransportType = 2).
c.
Set the 'V.23 Modem Transport Type' parameter to
Enable Bypass
(V23ModemTransportType = 2).
d.
Set the 'V.32 Modem Transport Type' parameter to
Enable Bypass
(V32ModemTransportType = 2).
Summary of Contents for Mediant 500 MSBR
Page 2: ......
Page 33: ...Part I Getting Started with Initial Connectivity ...
Page 34: ......
Page 36: ...User s Manual 36 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 40: ...User s Manual 40 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 45: ...Part II Management Tools ...
Page 46: ......
Page 48: ...User s Manual 48 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 115: ...Part III General System Settings ...
Page 116: ......
Page 132: ...User s Manual 132 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 137: ...Part IV General VoIP Configuration ...
Page 138: ......
Page 290: ...User s Manual 290 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 306: ...User s Manual 306 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 380: ...User s Manual 380 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 454: ...User s Manual 454 Document LTRT 10375 Mediant 500 MSBR This page is intentionallty left blank ...
Page 455: ...Part V Gateway Application ...
Page 456: ......
Page 460: ...User s Manual 460 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 484: ...User s Manual 484 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 494: ...User s Manual 494 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 625: ...Part VI Session Border Controller Application ...
Page 626: ......
Page 654: ...User s Manual 654 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 656: ...User s Manual 656 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 741: ...Part VII Cloud Resilience Package ...
Page 742: ......
Page 751: ...Part VIII Data Router Configuration ...
Page 752: ......
Page 753: ......
Page 754: ......
Page 756: ...User s Manual 756 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 757: ...Part IX Maintenance ...
Page 758: ......
Page 834: ...User s Manual 834 Document LTRT 10375 Mediant 500 MSBR This page is intetnionaly left blank ...
Page 837: ...Part X Status Performance Monitoring and Reporting ...
Page 838: ......
Page 848: ...User s Manual 848 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 852: ...User s Manual 852 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 854: ...User s Manual 854 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 878: ...User s Manual 878 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 880: ...User s Manual 880 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 926: ...User s Manual 926 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 927: ...Part XI Diagnostics ...
Page 928: ......
Page 950: ...User s Manual 950 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 954: ...User s Manual 954 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 956: ...User s Manual 956 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 958: ...User s Manual 958 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 974: ...User s Manual 974 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 976: ...User s Manual 976 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...
Page 977: ...Part XII Appendix ...
Page 978: ......
Page 982: ...User s Manual 982 Document LTRT 10375 Mediant 500 MSBR This page is intentionally left blank ...