Implement SIP 603+ (ATIS-1000099) support for FCC analytics-based call blocking compliance.
Detection:
- Detect incoming 603+ responses by checking "Network Blocked" phrase
and "v=analytics1;" in the `Reason` header text
- Set `sip_603plus_reason` channel variable on both legs for CDR visibility
Passthrough control:
- `sip_603plus_passthrough=true`: forward 603+ phrase and Reason header
- `sip_603plus_passthrough=false`: strip `Reason` header, send clean `603 Decline`
- Not set: existing behavior preserved
- Works independently of `disable_q850_reason` for selective forwarding
* [mod_opus] add cfg setting to overwrite the fmtp stereo param coming from remote. Eg: incoming SDP has stereo=1 but we want a mono call so we answer with stereo=0.
sprop-stereo will be set to 0 too.
* [core] opus: use switch_core_max_audio_channels() with remote fmtp stereo=1 to allow disabling of stereo.
Previously, the configuration file vars.xml set the TLS Cipher Suites only for internal SIP profiles. External SIP profiles used the 'DEFAULT' set of the underlying OpenSSL. Now, external SIP profiles copy to the general setting of vars.xml as well. Of course, you can overwrite this anytime, for example, to use different sets for internal and external.
[mod_sndfile] add stereo to mono support for file formats that need it (eg: gsm, vox), add unit test for stereo
[mod_sndfile] mono to stereo and stereo to mono unit tests.
[unit-tests] mod_sndfile: don't wait for recording file to be flushed to disk by the core, use switch_ivr_stop_record_session()
[mod_sndfile] fix format "wve" (Psion Series 3)
[mod_sndfile] fix format "htk" (Hidden Markov Model Tool Kit)
[mod_sndfile] fix file format "iff" (AIFF)
[mod_sndfile] fix file format "xi" (FastTracker 2)
[mod_sndfile] fix file format "sds" (Midi Sample Dump Standard)
[uni-tests] add more audio file extensions to sndfile unit tests.
[mod_sndfile] add config file support (with one param currently: "allowed-extensions")
[mod_sndfile] add sample file sndfile.conf.xml to 'testing' and 'vanilla' cfg trees.
[mod_sndfile] free() cfg xml
[unit-tests] mod_sndfile: unload module test.
[unit-tests] mod_sndfile: add conf file unit-test (param that allows only certain file extensions)
[unit-tests] adjusts Makefile.am for new CI (tests)
[unit-tests] adjust path to sound file.
[unit-tests] [mod_sndfile] remove Makefile.am from test/
[unit-tests] [mod_sndfile] fix build (Andrey)
Dmitry Verenitsin