FreeSWITCH 总体架构

【1】总体结构

【2】代码结构目录

【3】模块简介

Applications应用

mod_abstraction– 提供了一个抽象的API调用(未来有更多功能)Provides an abstraction to API call (and more in the future).
mod_avmd– 使用一个通用的方法检测语音信箱响铃Detects voicemail beeps using a generalized approach.
mod_blacklist– 黑名单模块Blacklist module.
mod_callcenter– 排队叫号的应用程序，可用于呼叫中心的需求Call queuing application that can be used for call center needs.
mod_cidlookup– 使用电话号码从数据,url等中查询来电显示名称 Provides a means (database, url) to lookup the callerid name from a number.
mod_cluechoo– 一个简单的框架，演示模块A simple framework demo module.
mod_commands– API接口命令集A mass plethora of API interface commands.
mod_conference– 会议模块 Conference room module.
mod_curl– 允许脚本发出HTTP请求，接收响应为纯文本或JSON Allows scripts to make HTTP requests as receive responses as plain text or JSON.
mod_db– 数据库键/值存储功能，组拨号，以及限制后端。Database key/value store functionality, group dialing, and limit backend.
mod_directory– 用户名称目录Dial by Name directory.
mod_distributor– 简单的轮循式分发Simple round-robin style distributions.
mod_dptools– Dialplan Tools: provides a number of apps and utilities for the dialplan.
mod_easyroute– A simple DID routing engine that uses a database lookup to determine how to route an incoming call.
mod_enum– Route PSTN numbers over internet according to ENUM servers, such ase164.org
mod_esf– Holds the multi cast paging application for SIP.
mod_esl– 允许生成远程ESL命令Allows to generate remote ESL commands.
mod_expr– Brian Allen Vanderburg’s expression evaluation library.
mod_fifo– FIFO module.
mod_fsk– FSK (Frequency-Shift Keying) data transfer
mod_fsv– FreeSWITCH Video application (Recording and playback)
mod_hash– Hashtable key/value store functionality and limit backend
mod_httapi– HT-TAPI Hypertext Telephony API (Twilio FreeSWITCH style)
mod_http_cache– HTTP GET缓存HTTP GET with caching.
mod_ladspa– use Auto-tune on your call.
mod_lcr– Implements LCR (Least Cost Routing)
mod_limit – pulled into core. See:Limit.
mod_memcache– API that integrates with memcached (a distributed key/value object store)
mod_mongo–http://www.mongodb.org/
- describtion needed!
mod_mp4– MP4 File Format support for video apps.
mod_nibblebill– Billing module (“nibbles” at credit/cash amounts during calls)
mod_oreka– Module for Media Recording with Oreka
mod_osp– Open Settlement Protocol (OSP) Module.
mod_rad_auth– use RADIUS for authentication
mod_redis– supplies a limit back-end that uses Redis.
mod_rss– Reads RSS feeds via a TTS engine.
mod_skel– Dummy module.
mod_sms– Apps for chat messages
mod_snapshot– Records a sliding window of audio and can take snapshots to disk.
mod_snipe_hunt– A simple framework demo module.
mod_snmp– SNMP module.
mod_snom– Controlling softkeys on Snom phones (button function, led state, label etc.)
mod_soundtouch– Modify the pitch of the audio and other sound effects.
mod_spandsp– Spandsp tone and DTMF detectors. A combination of mod_fax and mod_voipcodecs and mod_t38gateway.
mod_spy– User spy module.
mod_stress– Module for detecting voice stress.
mod_tone_detect– Tone detection module.
- nowMERGEDintomod_dptools
mod_valet_parking– Allows calls to be parked and picked up easily.
mod_vmd– Voicemail beep detection module.
mod_voicemail– Full-featured voicemail module.
mod_voicemail_ivr– VoiceMail IVR Interface.
mod_xml_odbc– Allows user directory to be accessed from a database in realtime.

Speech Recognition / Text-to-Speech

mod_cepstral– Links into Cepstral for dynamic sound output.
mod_flite– Free open source Text to Speech.
mod_pocketsphinx– Free open source Speech Recognition.
mod_tts_commandline– Run a command line and play the outputted file.
mod_shout– allows you to stream audio from an url hence can be used with online TTS providers; see [Examples]
mod_unimrcp– Module for an open MRCP implementation.

Codecs

Codec Negotiation explained

mod_amr– GSM-AMR (Adaptive Multi-Rate) codec.
mod_amrwb– GSM-AMRWB (ARM Wide Band) codec.
mod_bv– BroadVoice16 and BroadVoice32 audio codecs (Broadcom codecs).
mod_celt– CELT ultra-low delay audio codec.
mod_dahdi_codec– DAHDI Codecs (G729A 8.0kbit, G723.1 5.3kbit).
mod_codec2– FreeSWITCH CODEC2 Module.
mod_g723_1G.723.1 codec.
mod_g729– G.729 codec.
mod_com_g729– G.729 codec (licenced version supporting transcoding).
mod_h26x– H26X signed linear codec.
mod_ilbc– ILBC codec.
mod_opus– The OPUS ultra-low delay audio codec (http://opus-codec.org/)
mod_sangoma_codec– Module to use the Sangoma transcoding cards.PCMU,PCMA,G729,G726-32,G722,GSM,G723,AMR,G7221,iLBC
mod_silk– Skype’s SILK codec.
mod_siren– G.722.1 (Siren7) and G.722.1 Annex C (Siren14) Polycom codecs.
mod_skel_codec– FreeSWITCH skeleton codec.
mod_speex– Speex codec.

Dialplan

mod_dialplan_asterisk– Allows you to create dialplans the old-fashioned way.
mod_dialplan_directory– Allows you to obtain a dialplan from a directory resource (see directories below)
mod_dialplan_xml– Allows you to program dialplans in XML format.
mod_yaml– Allows you to program dialplans in YAML format.

Directories

mod_ldap– LDAP module made to obtain dialplans, user accounts, etc.

Endpoints

mod_dingaling– Jabber/Google Talk Talk integration module.
mod_h323– Endpoint module based on the h323plus library.
mod_html5– HTML5 Endpoint Module
mod_khomp– All Khomp Cards module.
mod_loopback– Loopback endpoint module – A loopback channel driver to make an outbound call as an inbound call.
mod_opal– Multi-protocol (H.323/IAX2) endpoint module based on the Opal library.
mod_openzap– Interface to Zaptel hardware.
mod_freetdm– Interface to Zaptel hardware. Replaces mod_openzap
mod_portaudio– Voice through a local soundcard.
mod_skinny– SCCP module
mod_skypopen– Skype compatible module.
mod_gsmopen– FreeSWITCH GSM interface module
mod_sofia– SIP module.
mod_rtmp– “Real time media protocol” endpoint for FreeSWITCH.
mod_wanpipe– T1/E1 Sangoma Card module.
- replaced bymod_freetdm
mod_woomera– H.323/Woomera module.

Event Handlers

Seecdr

mod_cdr_csv– CSV call detail record handler.
mod_cdr_pg_csv– Asterisk Compatible CDR Module with PostgreSQL interface
mod_cdr_sqlite– SQLite CDR Module
mod_radius_cdr– RADIUS CDR Module.
mod_xml_cdr– XML-based call detail record handler.
mod_json_cdr– JSON CDR Module to files or curl
mod_cdr_mongodb– MongoDB CDR module
mod_erlang_event– Module to send/receive events/commands in Erlang’s binary format.
mod_event_multicast– Broadcasts events to netmask.
mod_event socket– Sends events via a single socket.
mod_event_test– Print all events to console.
mod_rayo– 3PCC over XMPP –http://rayo.org/xep
mod_snmp– SNMP AgentX module
mod_xmpp_event– Sends events to a Jabber ID (proof of concept application.)
mod_zeroconf– Support for zeroconf.
mod_event_zmq–http://www.zeromq.org/

Unsupported

mod_cdr– Call detail record handler

File Formats

mod_file_string– A useful way of specifying multiple sound files to be played sequentially.
- nowMERGEDintomod_dptools
mod_local_stream– Multiple channels connected to same looped file stream.
mod_portaudio_stream– Stream from an external audio source forMusic on Hold
mod_native_file– File interface for codec specific file formats.
mod_shell_stream– Stream audio from an arbitrary shell command. Read audio from a database, from a soundcard, etc.
mod_shout– MP3 files and shoutcast streams.
mod_sndfile– Multi-format file format transcoder (WAV, etc)
mod_ssml– Speech Synthesis Markup Language parser
mod_tone_stream– Tone Generation Stream.

Languages

Languages for Call Controlexplained.

mod_java– Java support.
mod_lua– Lua support.
mod_managed– Support for .NET (Microsoft CLR or Mono) and .NET languages (C#, VB, F#, …)
mod_perl– Perl support.
mod_python– Python Support.
mod_spidermonkey– JavaScript support. See also ourJavascriptpage.
- mod_spidermonkey_core_db– JavaScript support for the freeswitch SQLite.
- mod_spidermonkey_skel– JavaScript dummy module.
- mod_spidermonkey_teletone– JavaScript support for lib_teletone.
- mod_spidermonkey_odbc– JavaScript support for ODBC.

Languages (unsupported / out of tree)

mod_php– PHP support.
mod_ruby– Ruby support.

Loggers

mod_console– Console logger.
mod_logfile– File logger.
mod_syslog– Syslog logger.

Timers

softtimer – Timer for FreeSWITCH. No hardware needed, now in-core (but still optional)
mod_posix_timer– POSIX timers. Runs on older kernels like the ones in Centos 5.
mod_timerfd– a new kernel that supports this option kernel >= 2.6.25 and libc >= 2.8

External API’s

mod_xml_curl– XML Gateway Code. Configure FreeSWITCH™ from a web server on boot and on the fly.
mod_xml_ldap– LDAP XML Gateway.
mod_xml_rpc– XML Remote Procedure Calls. Issue commands from your web application.
mod_xml_scgi– Simple Common Gateway Interface

External modules

freeswitch munin module– Munin modules for monitoring freeswitch servers.

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