Appendix A: Glossary

Glossary: Call Detail Records (CDR)Glossary: Call routing Glossary: DNS Glossary: Mean Opinion Score (MOS)Glossary: NAP Glossary: RADIUS Glossary: Ringback tones Glossary: SAP Glossary: Signaling protocols Glossary: SIP Glossary: Softswitch Glossary: Toolpack Glossary: Unified communications Glossary: Web Portal Glossary: DTMF Relay

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