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CAPI channel driver for Asterisk
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colognechip/chan_capi
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AUTHORS ======= Hans Petter Selasky <[email protected]> Armin Schindler <[email protected]> DEBUGGERS, BUGFIXERS AND CONTRIBUTORS ===================================== Lele Forzani <[email protected]> Florian Overkamp <[email protected]> Gareth Watts <[email protected]> Jeff Noxon <[email protected]> Petr Michalek <[email protected]> Jan Stocker <[email protected]> Frank Sautter, levigo group Rob Thomas <[email protected]> Klaus-Peter Junghanns <[email protected]> ...and all the others that have been forgotten :-) FEATURES ======== - Incoming and outgoing calls - Overlap sending (dialtone and additional digits) - DID: dial in digits - CID,DNID (callling party, called party) - CLIR/CLIP - *CAPI CD: call deflection - *CAPI ECT: explicit call transfer - *CAPI HOLD - *CAPI RETRIVE - *CAPI Line Interconnect - *CAPI DTMF detection - Sofware DTMF detection - Early B3 connects (always,success,never) - Alaw and Ulaw support - ACO: Reject call waiting - Tuneable latency, see "CAPI_MAX_B3_BLOCK_SIZE" in "chan_capi.h". - Eicon CAPI echo cancelation (echocancel=1) - Rx/Tx gains (rxgain=1.0) - [Inter-] national dialing prefix (for callerid) configurable in "capi.conf" - receive FAX using CAPI * if supported by the CAPI controller SUPPORTED OPERATING SYSTEMS =========================== Linux NetBSD FreeBSD DEVICE PERMISSIONS ================== OpenPBX.org, by default, runs as the non-root user/group openpbx/openpbx. You must make sure that the /dev/capi* device files are readable by OpenPBX.org either by changing the ownership or the permissions of the the device files or by running OpenPBX.org as root. EXAMPLE CONFIGURATION FILES =========================== See "capi.conf" and "extensions.conf" CAPI COMMAND APPLICATION ======================== See example "extensions.conf". ECT: Explicit call transfer of the call on hold (must put call on hold first!) [macro-capiect] exten => s,1,capiCommand(ect) [default] exten => s,1,capiCommand(hold) exten => s,2,Wait(1) exten => s,3,Dial(CAPI/contr1/1234,60,M(capiect)) Short HOWTO of capiCommand(receivefax|<filename>[|<stationid>|<headline>]): ========================================================================== For those of you who have a CAPI card with an on-board DSP (like some Eicon and DIVA Server), this patch allows you to receive faxes. If you want to answer a channel in fax mode, use capicommand(receivefax|...) instead of Answer() If you use Answer(), you will be in voice mode. If the hardware DSP detects fax tone, you can switch from voice to fax mode by calling capicommand(receivefax|...). The parameter <filename> is mandatory and the parameters <stationid> and <headline> are optional. Example of use : line number 123, play something, if a fax tone is detected, handle it line number 124, answer directly in fax mode [incoming] exten => 123,1,Answer() exten => 123,2,BackGround(jpop) exten => 124,1,Goto(handle_fax,s,1) exten => fax,1,Goto(handle_fax,s,1) [handle_fax] exten => s,1,capicommand(receivefax|/tmp/${UNIQUEID}[|<stationid>|<headline>]) exten => s,2,Hangup() exten => h,1,deadagi,fax.php // Run sfftobmp and mail it. The output of capicommand(receivefax|...) is a SFF file. Use sfftobmp to convert it. With a DIVA Server, following features are provided: - fax up to 33600 - high resolution - Color Fax - JPEG Compression is disabled (not tested yet) After successful receive of a fax, the following variables will be set for that channel: FAXRATE : The baud rate of the fax connection FAXRESOLUTION : 0 = standard, 1 = high FAXFORMAT : 0 = SFF FAXPAGES : Number of pages received FAXID : The ID of the remote fax maschine PBX VARIABLES USED/SET BY CHAN_CAPI =================================== BCHANNELINFO On incomming call, this variable is set with the B-channel information value: '0' : B-channel is used (default) '1' : D-channel is used (not implemented yet) '2' : neither B nor D channel is used (e.g. call waiting) Call-Waiting: an incoming call with BCHANNELINFO not '0' cannot be accepted. Another connection must be dropped before accepting or use capicommand(deflect|<number>) to initiate call deflection to another destination. CALLEDTON The 'type of number' value of the called number is saved in this variable on incomming call. _CALLERHOLDID If a call is put on hold (ISDN-HOLD), the reference id is saved in this variable. This variable is inherited as CALLERHOLDID to the dialed channel and will be used if e.g. capicommand(ect) is used to transfer the held call. CALLINGSUBADDRESS If set on dial(), the calling subaddress will be set to the content. CALLEDSUBADDRESS If set on dial(), the called subaddress will be set to the content. CONNECTEDNUMBER Can be set before answering and if set, the content is used for IE 'Connected Number' on answering. PEER_IS_ANALOG Is set for all incoming calls if the peer is analog. FAXEXTEN If chan_capi sends the call to extensions 'fax', the original extension number is saved in this variable. PRI_CAUSE If set, this value will be used as hangup cause on hangup. REDIRECTINGNUMBER On incoming call, if the call was redirected to you by someone, the number of the redirecting party is saved in this variable. RDNIS is set as well. REDIRECTREASON If the incoming call was redirected to you, this variable is set with the reason value. Functions (available with newer Asterisk only) ============================================== VANITYNUMBER(<vanitynumber>) Converts the 'vanitynumber' into a digit-only string. International keypad is used, e.g. ABC=1, DEF=2, ...
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