> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/appendices.md).

# Appendices

- [Appendix A: Glossary](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary.md): Glossary of ProSBC and VoIP terms: CDR, DNS, RADIUS, SIP and its variants, SIGTRAN, softswitch, ringback tones, service access points and Toolpack.
- [Glossary: Call Detail Records (CDR)](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-call-detail-records-cdr.md): ProSBC call detail records: text and RADIUS CDR export, per-leg generation, session identifiers, and CDR behaviour in 1+1 high-availability setups.
- [Glossary: Call routing](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-call-routing.md): Call routing refers to the ability to route calls based on criteria such as origin, destination, time of day, service provider rates, etc.
- [Glossary: DNS](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-dns.md): DNS, the Domain Name System, is a hierarchical decentralized naming system that translates domain names into numerical IP addresses.
- [Glossary: Mean Opinion Score (MOS)](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-mean-opinion-score-mos.md): Mean Opinion Score (MOS) rates voice call quality from 5 excellent to 1 bad, with ideal MOS of 4.3 for G.711, 4.0 for G.729 and 3.6 for G.723.
- [Glossary: NAP](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-nap.md): A Network Access Point (NAP) is the entry point to another network or destination peer, such as a SIP proxy. Think of it as a trunk group.
- [Glossary: RADIUS](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-radius.md): RADIUS provides authentication, authorization and accounting (AAA) for subscriber services. ProSBC supports RADIUS accounting, authorization and redundancy.
- [Glossary: Ringback tones](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-ringback-tones.md): A ringback tone is the audible ringing heard by the calling party after dialing and before the call is answered at the far end.
- [Glossary: SAP](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-sap.md): A Service Access Point (SAP) binds the SIP stack to a transport server. Multiple SAPs can be configured to separate signaling traffic.
- [Glossary: Signaling protocols](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-signaling-protocols.md): Signaling refers to the system of messages required to set up and tear down telephone calls between the calling and the called parties.
- [Glossary: SIP](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-sip.md): SIP, the Session Initiation Protocol, is the signaling protocol used for VoIP. Covers transport servers on UDP, TCP and TLS, plus supported RFCs.
- [Glossary: Route retry](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-sip/glossary-route-retry.md): Route retry applies when the active routing script returns more than one matching route, and controls how ProSBC tries each in turn.
- [Glossary: SIGTRAN](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-sip/glossary-sigtran.md): SIGTRAN carries SS7 and ISDN signaling over an IP network, and is the name of the IETF working group that produced its specifications.
- [Glossary: SIP-I/SIP-T](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-sip/glossary-sip-i-sip-t.md): SIP-I is SIP with encapsulated ISUP, letting SS7 ISUP networks interwork with SIP networks. Compare SIP-I and SIP-T.
- [Glossary: SIP gateway](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-sip/glossary-sip-gateway.md): A SIP gateway transports VoIP media between IP networks and the PSTN, or between disparate IP networks.
- [Glossary: SIP Registration](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-sip/glossary-sip-registration.md): SIP registration explained: registrar and location service roles, per-NAP registration, retry and expiry negotiation, and 401 authentication flow.
- [Glossary: Softswitch](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-softswitch.md): A softswitch is a central device in a telecom network that connects calls from one phone line to another in software rather than hardware.
- [Glossary: Toolpack](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-toolpack.md): Toolpack is the collection of software components that let developers build applications interacting with TelcoBridges hardware products.
- [Glossary: Web server](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-toolpack/glossary-web-server.md): The Toolpack web server is spawned by tboamapp and is the system's main interface, using Mongrel on Windows and Lighttpd on Linux and Solaris.
- [Glossary: tboamapp](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-toolpack/glossary-tboamapp.md): tboamapp is started and monitored by tbtoolpack\_service, which restarts it if needed. The master tboamapp runs the system's core OAM roles.
- [Glossary: Tbtoolpack Service](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-toolpack/glossary-tboamapp/glossary-tbtoolpack-service.md): Tbtoolpack service is a lightweight application, started by the user or at host boot, that manages the Toolpack applications on a host.
- [System Id](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-toolpack/glossary-tboamapp/glossary-tbtoolpack-service/system-id.md): The System Id, also called TBX\_GW\_PORT or TbxGwPort, uniquely identifies a system and lets multiple systems coexist on the same IP network.
- [Gateway Port](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-toolpack/glossary-tboamapp/glossary-tbtoolpack-service/system-id/gateway-port.md): The Gateway Port, also known as TBX\_GW\_PORT, TbxGwPort or Toolpack System Id, is the UDP port used to control TelcoBridges devices.
- [Primary/Secondary](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-toolpack/glossary-tboamapp/primary-secondary.md): Primary qualifies a module configured to be master, secondary a module configured to be slave. Configured intent, as opposed to current state.
- [Master/Slave](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-toolpack/glossary-tboamapp/master-slave.md): Master is the module state that makes decisions for the system; slave is the state that takes orders from the master. Compare Primary/Secondary.
- [Active/Standby](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-toolpack/glossary-tboamapp/master-slave/active-standby.md): Active is the application instance operating the system; standby is the instance not currently performing that role. Compare Master/Slave.
- [Glossary: Unified communications](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-unified-communications.md): Unified Communications (UC) integrates real-time and non-real-time modes of communication within one or more applications.
- [Glossary: Web Portal](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-web-portal.md): The Web Portal is the principal interface to the ProSBC session border controller, Tmedia gateway, Ttrans transcoder, Tsig and Tmonitor products.
- [Glossary: DTMF Relay](https://prosbcdocs.telcobridges.com/appendices/appendix-a-glossary/glossary-dtmf-relay.md): DTMF relay explained: RFC 2833/4733 RTP events, SIP INFO, and in-band methods, and how ProSBC negotiates or transcodes between them per NAP profile.
- [Appendix B: Product Datasheets](https://prosbcdocs.telcobridges.com/appendices/appendix-b-product-datasheets.md): Product datasheets for ProSBC and the TelcoBridges hardware family: transcoding, TMG800, TMG3200, TMG7800, TSG, TMGIP and TM series units.


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