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7.2.1.3. SIP Support in Network Address Translation Networks – NAT............................................96
7.2.2. Codec Name Assignment..............................................................................................................96
7.2.3. Secure Calls..................................................................................................................................97
7.2.4. Voice Algorithms: ..........................................................................................................................97
7.2.4.1. G.711 (A-law and mµ-law)...................................................................................................97
7.2.4.2. G.726...................................................................................................................................97
7.2.4.3. G.729A ................................................................................................................................97
7.2.4.4. G.723.1................................................................................................................................97
7.2.5. Codec Selection............................................................................................................................97
7.2.6. Dynamic Payload ..........................................................................................................................97
7.2.7. Adjustable Audio Frames Per Packet............................................................................................97
7.2.8. Fax Tone Detection Pass-Through................................................................................................97
7.2.9. DTMF: In-band & Out-of-Band (RFC 2833) (SIP INFO *)..............................................................97
7.2.10. Call Progress Tone Generation ................................................................................................98
7.2.11. Call Progress Tone Pass Through............................................................................................98
7.2.12. Jitter Buffer – Dynamic (Adaptive)............................................................................................98
7.2.13. Full Duplex Audio .....................................................................................................................98
7.2.14. Echo Cancellation – Up to 8 ms Echo Tail ...............................................................................98
7.2.15. Voice Activity Detection with Silence Suppression & Comfort Noise Generation .....................98
7.2.16. Attenuation / Gain Adjustment..................................................................................................98
7.2.17. Signaling Hook Flash Event .....................................................................................................98
7.2.18. Configurable Flash / Switch Hook Timer ..................................................................................99
7.2.19. Configurable Dial Plan with Interdigit Timers............................................................................99
7.2.20. Message Waiting Indicator Tones – MWI.................................................................................99
7.2.21. Polarity Control.........................................................................................................................99
7.2.22. Calling Party Control – CPC .....................................................................................................99
7.2.23. International Caller ID Delivery.................................................................................................99
7.2.24. Streaming Audio Server – SAS ..............................................................................................100
7.2.25. Music On Hold – MOH............................................................................................................100
7.3. Security Features.............................................................................................................. 102
7.3.1. Multiple Administration Layers (Levels and Permissions) ...........................................................102
7.3.2. HTTP Digest – Encrypted Authentication via MD5 (RFC 1321) ..................................................102
7.3.3. HTTPS with Client Certificate......................................................................................................102
7.4. Administration and Maintenance Features....................................................................... 102
7.4.1. Web Browser Administration and Configuration via Integral Web Server....................................102
7.4.2. Telephone Key Pad Configuration with Interactive Voice Prompts..............................................102
7.4.3. Automated Provisioning & Upgrade via TFTP, HTTP and HTTPS..............................................102
7.4.4. Periodic Notification of Upgrade Availability via NOTIFY or HTTP..............................................102
7.4.5. Non-Intrusive, In-Service Upgrades ............................................................................................102
7.4.6. Report Generation and Event Logging........................................................................................102
7.4.7. Syslog and Debug Server Records.............................................................................................102
8. List of all configuration parameters ........................................................................................... 102
9. Acronyms................................................................................................................................... 113
10. Glossary................................................................................................................................ 115
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