Dialogic 3000 SERIES Manual do Utilizador descarregar pdf (Página 31)

Dialogic

Brooktrout

Product Series SDK 6.7.0 Release Notes 31

 IPY56054, IPY56116 – Cisco 2821 using V34 T38. When using V34 T38 on a Cisco 2821, received faxes may fail

returning various hangup codes. The greater the number of simultaneous channels using T38 V34 on the 2821, and

the more complex the image, the higher the failure rate. Cisco TAC 617057035.

 IPY56586 - Cisco 2901 using V34 T38. Sent or received faxes may fail returning various hangup codes. This is due

to a variety of issues including; all calls to non-V34 fax devices failing, in V17 mode all faxes would be limited to

9600bps and ECM mode disabled. Cisco TAC 6107057091, 617057073 and 615450733. Cisco reports these TACs

are resolved with IOS 15.2.2T, this has not yet been verified by Dialogic.

 IPY56389 - SR140 V34 G.711 fax pass-through on Virtual Machines (VMs) not supported. VMs work by time-

sharing host physical hardware, and they cannot exactly duplicate the timing behavior of a physical machine.

Timing inaccuracies vary depending upon many factors including the hardware, VM, VM configuration, Client

Operating System, and the utilization of the hardware by applications on the same or other VM clients. V34 G711

fax pass-through is very sensitive to these VM timing inaccuracies, causing various fax failures which increase with

high loads. We are actively researching solutions to better address this.

 IPY56980 –SR140 V.17 G.711 fax pass through when using Windows on VMware has excessive PPRs. Due to the

timing inaccuracies, an excessive number of PPRs were experienced, although fax completion rates were acceptable.

 IPY57260 - Due to improper free memory space calculations done by the driver, under certain uncommon timing

conditions depending on the pattern of data being transferred and the speed of the system, data may be dropped.

This has been seen as a HNG_INTERRUPT_OVERRUN error under T.38 Internet Aware Fax.

Miscellaneous

 IPY54004 – Calls may terminate on DID lines if sample application debug information is sent to the screen. Debug

output sent to the screen delays the time the application answers the incoming call after DID digits are detected.

Some DID lines will hang up if this delay exceeds 200ms. Pipe the debug output to a file to avoid this situation.

Deprecated functionality

This section lists functionality which is supported in this release, but is not recommended for new designs because it will

not be supported in a future release. For a list of currently unsupported functionality, please refer to the Brooktrout Bfv

APIs Reference Manual.

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Dialogic 3000 SERIES Manual do Utilizador Página 31