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HMP Linux 1.2 Release Update, Rev 05 — September 2006 19
• DM3Stderr and DebugAngel diagnostics tools are not supported in this release. As a
way to debug DM3 firmware, all firmware prints are sent to /var/log/messages by
default. They can be sent to stdout when the boot kernel is run in non-daemon mode.
You must ensure that syslogger is enabled and running. To check, use “ps -ef | grep
syslogger”. If it is not running, you can start it using the Linux setup utility.
• If you run an application as root and then switch to a non-privileged user, any log files
created in the first run will probably be read-only for the non-privileged user.
• For users who do not use DNS or have a system with no DNS entry, the /etc/hosts file
must contain an entry with the machine’s hostname and IP address. The hostname
should only appear once in the file.
• The HMP system does not operate with board level products and system software
releases installed on the same machine.
• All cron jobs should be scheduled for off-peak hours to avoid performance issues.
Conferencing
• The dcb_setbrdparm() function fails when attempting to set MSG_ALGORITHM to
ALGO_LOUD and ATDV_ERRMSGP returns "Bad global parameter value". Do not
set this parameter. By default, the algorithm uses the Loudest Talker.
Fax
• For fax applications, the header file srllib.h must appear before the header file faxlib.h
in the #include directive.
Global Call, IP, and IPML
• Only IP-specific Global Call features will be provided as described in the Global Call
IP for Host Media Processing Technology Guide (05-2239-003).
• G.711 µ-Law and A-Law IP Encoding/Decoding only support 64 Kbps.
• If a call is made to HMP using NetMeeting* from a machine that does not have a
sound card, the coder negotiation will fail and the call will be disconnected before a
GCEV_ANSWERED event is generated.
• If a call is made to HMP using NetMeeting, the "secure outgoing calls" option must not
be selected.
• Global Call applications using T.38 should call
gc_SetUserInfo(IPPARM_T38_CONNECT) after GCEV_OFFERED, but before the
next GC function call, for T.38 only calls. Otherwise, the call will fail and the application
will get a GCEV_TASKFAIL event.
• The ipm_SendRFC2833SignalToIP() function is not supported on HMP. The
application cannot use this API to generate RFC2833 digits on a call. Use the voice
device to dial digits and set up RFC2833 transfer mode in a call.
• Host applications should always clean up resources before exiting by using one of the
following methods:
• If using Global Call call control, the application should call gc_DropCall() followed
by gc_ReleaseCall(), or use gc_ResetLineDev().