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- B2B_ENTITIES - Back-to-Back User Agent Entities, 🟡 beta
- B2B_LOGIC - Back-to-Back User Agent Logic, 🟡 beta
- DIALOG - Dialog support module, 🟢 stable
- NAT_TRAVERSAL - NAT traversal module, 🟡 beta
- NATHELPER - NAT traversal helper module, 🟢 stable
- OPTIONS - OPTIONS server replier module, 🟢 stable
- REGISTRAR - SIP Registrar implementation module, 🟢 stable
- SIGNALING - SIP signaling module, 🟡 beta
- TM - Transaction (stateful) module, 🟢 stable
- SL - Stateless replier module, 🟢 stable
- SMS - SIP-to-SMS IM gateway module, 🟢 stable
- CARRIERROUTE - routing extension suitable for carriers, 🔴 alpha
- DISPATCHER - Dispatcher module, 🟢 stable
- DROUTING - Dynamic Routing / LCR, 🟢 stable
- ENUM - ENUM lookup module, 🟢 stable
- JABBER - JABBER IM and PRESENCE interconnection module, 🟡 beta
- IMC - Instant Messaging Conferencing module, 🟡 beta
- LOAD_BALANCER - Load Balancer (for calls) module, 🔴 alpha
- MSILO - SIP message silo module, 🟢 stable
- RR - Record-Route and Route module, 🟢 stable
- OSP - OSP peering module, 🟢 stable
- CPL-C - CPL interpreter module, 🟢 stable
- LCR - Least Cost Routing module, 🟢 stable
- PDT - Prefix-to-Domain translator module, 🟢 stable
- DIVERSION - Diversion header insertion module, 🟢 stable
- IDENTITY - SIP Identity implementation, 🔴 alpha
- MAXFWD - Max-Forward processor module, 🟢 stable
- MANGLER - SIP mangler module, 🟢 stable
- PATH - Path support for SIP frontending, 🟢 stable
- UAC - UAC functionalies (FROM mangling and UAC auth), 🟢 stable
- UAC_REDIRECT - UAC redirection functionality, 🟢 stable
- URI - Generic URI operation module, 🟢 stable
- SST - SIP Session Timer support, 🟢 stable
- PRESENCE - Presence server module - common API, 🟢 stable
- PRESENCE_DIALOGINFO - Extension to Presence server for Dialog Info, 🔴 alpha
- PRESENCE_MWI - Extension to Presence server for Message Waiting Indication, 🟢 stable
- PRESENCE_XCAPDIFF - Extension to Presence server for XCAP-DIFF event, 🔴 alpha
- PRESENCE_XML - Presence server module - presence & watcher info and XCAP, 🟢 stable
- PUA - Common API for presence user agent client, 🟢 stable
- PUA_BLA - BLA extension for PUA, 🟢 stable
- PUA_DIALOGINFO - Dialog-Info extension for PUA, 🔴 alpha
- PUA_MI - MI extension for PUA, 🟢 stable
- PUA_USRLOC - USRLOC extension for PUA, 🟢 stable
- PUA_XMPP - XMPP extension for PUA (SIMPLE-XMPP presence gateway), 🟢 stable
- RLS - Resource List Server implementation, 🟡 beta
- XCAP_CLIENT - XCAP client implementation, 🟡 beta
- JSON - JSON packing function, 🔴 alpha
- CFGUTILS - Different config utilities, 🟢 stable
- EXEC - External exec module, 🟢 stable
- TEXTOPS - Text operations module, 🟢 stable
- AVPOPS - AVP operation module, 🟢 stable
- REGEX - RegExp via PCRE library, 🔴 alpha
- BENCHMARK - Config file benchmarking, 🟡 beta
- GFLAGS - Global shared flags module, 🟢 stable
- PERL - embed execution of Perl function, 🟢 stable
- MMGEOIP - MaxMind GeoIP module, 🟡 beta
- XLOG - Advanced logger module, merged into core
- AUTH_AAA - AAA-backend authentication module, 🟢 stable
- AUTH - Authentication Framework module, 🟢 stable
- AUTH_DB - Database-backend authentication module, 🟢 stable
- PERMISSIONS - Permissions control module, 🟢 stable
- AUTH_DIAMETER - DIAMETER-backend authentication module, ⚫ unmaintained
- ACC - Accounting module, 🟢 stable
- CALL CONTROL - PrePaid application module, 🟡 beta
- ALIAS_DB - Database SIP aliases module, 🟢 stable
- DIALPLAN - Dialplan management, 🟢 stable
- DOMAIN - Multi-domain support module, 🟢 stable
- DOMAINPOLICY - Policies to connect federations, 🟡 beta
- GROUP - User-groups module with DB-backend, 🟢 stable
- USERBLACKLIST - User black/white listing, 🔴 alpha
- SPEEDDIAL - Per-user speed-dial controller module, 🟢 stable
- PEERING - Radius peering module, 🔴 alpha
- CLOSEDDIAL - PBX-like dialling features, 🔴 alpha
- USRLOC - User location implementation module, 🟢 stable
- PIKE - Flood detector module, 🟢 stable
- QOS - QOS (RTP) module, 🔴 alpha
- RATELIMIT - SIP traffic shaping module, 🔴 alpha
- DB_BERKELEY - Berkeley DB driver for DB API, 🟡 beta
- DB_FLATSTORE - Fast writing-only text-backend for database module, 🟢 stable
- DB_HTTP - HTTP-backend for DB API, 🔴 alpha
- DB_MYSQL - MYSQL-backend for database API module, 🟢 stable
- DB_ORACLE - ORACLE-backend for database API module, 🔴 alpha
- DB_POSTGRES - POSTGRES-backend for database API module, 🟢 stable
- DB_TEXT - Text-backend for database API module, 🟢 stable
- DB_UNIXODBC - unixODBC driver module, 🟢 stable
- DB_VIRTUAL - Middle-layer DB mixer, 🔴 alpha
- PERLVDB - Perl Virtual Database engine, 🟢 stable
- LOCALCACHE - Local memory caching module, 🟡 beta
- MEMCACHED - MEMCACHED connector module, 🟡 beta
- MI_DATAGRAM - DATAGRAM (unix and network) support for Management Interface, 🟢 stable
- MI_FIFO - FIFO support for Management Interface, 🟢 stable
- STATISTICS - Script statistics support, 🟢 stable
- MI_XMLRPC - XMLRPC support for Management Interface, 🟢 stable
- AAA_RADIUS - RADIUS backend for the AAA API, 🟡 beta
- H350 - H350 implementation, 🟢 stable
- LDAP - LDAP connector, 🟢 stable
- SEAS - Sip Express Application Server (interface module), 🟢 stable
- SIPTRACE - SipTrace module, 🟢 stable
- SNMPStats - SNMP interface for statistics module, 🟢 stable
- STUN - Built-in STUN server, 🔴 alpha
- XMPP - SIP-to-XMPP Gateway (SIP to Jabber/Google Talk), 🟢 stable
- TLSOPS - TLS operations module, 🟢 stable
