Currently there is no easy way for ESL and dial plan users to easily correlate
the channel UUID of the call legs involved in a nightmare transfer. This patch
adds two new channel variables, which are set to the remote server call leg
UUIDs (transfer_refer_from, transfer_refer_for).
The UUIDs are passed from the remote server in custom headers (X-FS-Refer-From
and X-FS-Refer-For).
This allows new endpoints (outbound channels) to be called, after an originate
is already in progress, where any of the originally called endpoints need to
continue to ring.
One use case would be to convert a 302 Moved Temporarily destination to SIP
endpoint(s) and then to add the new endpoints to an in-progress originate,
without cancelling any of the other (already ringing) outbound channels.
In case of outbound_redirect_fatal=true none of the redirect variables are
set. This makes it impossible for ESL applications to extract any information
related to the "302 Moved Temporarily" reply.
This is nothing more than a shameless copy/paste from another mod_say
module, which already had timezone support. It simply checks if the
timezone variable is set and if it contains a valid timezone, then this
timezone will be used when announcing times/dates.
FS-7048 #resolve
This patch does the following:
* only starts MOH if no other file (sync or async) is currently playing
* adds a variable "conference_permanent_wait_mod_moh" that controls the
behavior of how the enter and exit sounds interact with the MOH when
wait_mod is set. When the variable is set, the MOH keeps playing and
the enter and exit sounds are mixed with the MOH. When the variable
is unset, then any playing MOH is first stopped, then the enter or
exit sound is played and the MOH is started again.
This functionality is useful in case the enter and exit sounds are
used to announce the name of the caller, who is joining or leaving a
conference.
FS-5159 #resolve
This allows the "broken ptime" detection to work correctly when packet
loss is present on the wire. In addition to the timestamps this patch
adds frame sequence tracking and corrects the timestamp difference
only as needed and according to the number of lost packets.
FS-6898 #resolve
This patch allows conference flags to be set dynamically from the
dial plan by either passing them to the conference application in
the +flags{ } string or by setting the "conference_flags" dial plan
variable.
The +flags{ } string is currently used to set *user* flags only.
This patch changes this by allowing the +flags{ } string to contain
conference related flags as well (for example wait_mod). It shouldn't
be a problem to pass both types of flags via +flags{ } as long as
the user and conference flag names are kept unique.
FS-5099 #resolve
Freeswitch tries to fix timing issues (wrong ptime) on re-invite the same way
it does for the initial invite. This results in small audio glitches, while it
sends a couple of packets with different ptime, before the timing detection
logic figures out the remote (broken) endpoint true ptime.
In order to avoid unnecessary timing changes, this patch overwrites the
advertised ptime from known broken endpoints with the ptime, which was detected
by freeswitch. It does this by checking if the sip_h_X-Broken-PTIME (1.2.x) or
rtp_h_X-Broken-PTIME (master) variables are set.
FS-6644 #resolve
Hristo Trendev