freetdm: - Clear the IO flag when FreeSWITCH hangs up before notifying freetdm
- Misc fixes to log messages to aid debugging
- Added ftdm ioread command to read media from the channel
- Modified the ftdm_channel_open() API to return FTDM_EBUSY if the channel is already open
mod_commands: Add 'presence_data' field to 'show channels like xxx' list of fields. This makes anthm's trick mentioned on the mailing list even more handy.
FS-3549 --resolve This patch will probably make it work but the bug is actually in the phone, the patch is simply tolerating the bad behaviour. You are correct about the a=sendonly missing, this was fixed in a later revision of the polycom firmware. I suggest that even if this patch works, that you update your phones to a newer firmware, preferably the most recent.
This patch will probably make it work but the bug is actually in the phone, the patch is simply tolerating the bad behaviour. You are correct about the a=sendonly missing, this was fixed in a later revision of the polycom firmware. I suggest that even if this patch works, that you update your phones to a newer firmware, preferably the most recent.
FS-3545 --resolve no, that was not the intention, I missed a few more spots to hack in the exception for iLBC, (thanks for marring my code iLBC ppl) it should work as expected now even with the m_per_ptime on
FS-3529 please try this revision I suspect its related to some uninitilized memory causing flags to be set that are not in the dtmf structure in certian cases
Stefan Knoblich [Wed, 7 Sep 2011 20:51:29 +0000 (22:51 +0200)]
[FreeTDM] Add (experimental) ftmod_misdn
Add I/O plugin for mISDN stack that is included in the linux kernel
since version 2.6.27.
The in-kernel mISDN stack uses a socket based interface (AF_ISDN),
data and control commands are exchanged via datagram messages.
This makes writing a driver that doesn't use a separate (per-span)
thread to handle all incoming events a bit tricky, because responses
to control messages and incoming data are mixed and interfacing
with the synchronous FreeTDM I/O API is problematic.
B(*)/D-channel handling:
The current version uses misdn_wait() to poll() for activity on
the non-blocking channel sockets and misdn_read() to receive and
handle all pending events up to the first PH_DATA_IND (data) message
(which is what the caller of the read method is actually after).
In case no data has been received, misdn_read() returns FTDM_SUCCESS
with *datalen = 0, which is OK for all the signalling modules tested
(ftmod_libpri and (out-of-tree) ftmod_isdn).
To send data, misdn_write() is called, which just sends a PH_DATA_REQ
message to the mISDN channel socket.
(*) B-channels use a per-channel timerfd as a timing reference for
'ready-for-write' poll()ing in misdn_wait().
This is a workaround for a limitation of mISDN sockets, which do not
support POLLOUT waiting on b-channel sockets (in a useful way).
Sending/receiving of data works the same way as on d-channels, otherwise.
The module has received some minimal testing using a beronet
single-port HFC E1 and a HFC4-S quad-port BRI card on linux-3.0.x.
--- Limitations ---
- Only the most basic features have been implemented (alarms,
sending/receiving data/audio).
- Spans are limited to E1 and BRI/BRI_PTMP trunk types.
- D-Channels only work on 16 for PRI and 3 for BRI.
- NT/TE mode information is not available from freetdm.conf /
at configure_span()-time so the module assumes TE mode,
which should be only a problem for cards that can change
the port configuration (pin-out) from software.
- Current design (b-channel timerfd / misdn_wait()/_read()/_write())
should be fine for most SoHo use-cases
(scalability / cpu usage / timing precision).
--- Requirements ---
- mISDNif.h header (/usr/include/mISDN/mISDNif.h), provided by mISDNuser
(http://isdn.eversberg.eu/download/lcr-1.7/mISDNuser-20100525.tar.gz).
- Linux kernel with mISDN and timerfd enabled (>= 2.6.27)
and libc with timerfd support.
section of make menuconfig. Timerfd is usually enabled by default.
The FreeTDM configure script will check for missing mISDNif.h
header and timerfd support and print a message.
You should see the following in the summary screen on success:
ftmod_misdn........................ yes
NOTE: Forcing mISDN support using the "--with-misdn" configure option,
will cause the configure script to fail on the first missing
dependency.
--- Usage ---
To use the module, make sure you have mISDN support in the kernel
(kernel modules loaded or kernel with built-in mISDN running),
the "misdn_info" application shipped with mISDNuser will output
a list of available mISDN ports on your system, e.g.:
Found 5 ports
Port 0 'hfc-4s.1-1': TE/NT-mode BRI S/T (for phone lines & phones)
2 B-channels: 1-2
B-protocols: RAW HDLC X75slp
...
Port 4 'hfc-e1.2': TE/NT-mode PRI E1 (for phone lines & E1 devices)
30 B-channels: 1-15 17-31
B-protocols: RAW HDLC X75slp
NOTE: ftmod_misdn will print an error message if mISDN support is not available,
or if there are no ports installed.
FS-3545 --resolve this is actually compliant when mixing ptimes in the same sdp but since iLBC uses its own fmtp for ptime I will add this patch to make it beleive its 20 for the sake of arguement. If you have any other problems with this, set the channel or global variable sdp_m_per_ptime=false to completely disable the default correct behaviour
add digit_action_set_target app that can set the target (direction of the dtmf flow and subsequent channel who gets the events) to self or peer (bridged channel when possible)
dschreiber [Wed, 31 Aug 2011 20:35:13 +0000 (13:35 -0700)]
Fix issue where mod_shout does not properly flush buffer on writing mp3 streams, resulting in incomplete files. TODO: Refactor as part of the while loop.
projects / thirdparty / freeswitch.git / log
