Data Sheet
© 2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 3 of 6
Voice features
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SIP version 2
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Dual-tone multifrequency (DTMF) tone detection and generation
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Voice Activity Detection (VAD)
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Comfort Noise Generation (CNG) compatible
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Silence suppression
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Call waiting, call waiting caller ID (FXS ports only)
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Caller ID with name/ number
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Caller ID blocking
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Call forwarding: no answer, busy, all
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Do not disturb
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Call transfer, call return, call back on busy
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Fax: G.711 pass-through or real-time fax over IP via T.38 fax relay
(T.38 support is dependent on fax machine and network/transport resilience)
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Supports multiple voice codecs: G.711a, G.711u, G.726,G.729A, G.723.1
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SIP over TLS
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Three-way conference calling with local mixing
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Per-call authentication and associated routing
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Call blocking with toll restriction
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Delayed disconnect
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Distinctive ringing: calling and called number
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Off-hook warning tone
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Selective/anonymous call rejection
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VoIP to PSTN (USA) service call origination and termination
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PSTN (USA) to VoIP service call origination and termination
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Forward calls to VoIP service: selective, authenticated, all
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Forward calls to PSTN service: selective, authenticated, all
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Automatic PSTN fallback (loss of power or IP service to unit, with quiescence to normal operations): fixed
fallback pairing of FXS ports to FXO ports
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Advanced inbound and outbound call routing
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Independent configurable dial plans (1 per port)
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Force PSTN disconnection
FXO behavior features
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PSTN answer delay timer
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PSTN-to-VoIP call max duration timer
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VoIP-to PSTN call max duration timer
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PSTN dialing delay timer
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VoIP dialog refresh interval timer
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PSTN ring time-out timer
International control features
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FXO port impedance: configurable to 16 settings
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Ring frequency: configurable
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SPA to PSTN and PSTN to SPA gain settings
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Ring frequency: maximum setting
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Ring validation time setting
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Tip/ring voltage adjustment setting
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Ring indication delay setting
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Operational loop current minimum value
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Ring time-out setting
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On-hook speed setting
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Ringer impedance setting
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Line-in-use voltage setting
Security
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Password-protected system reset to factory default
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Password-protected administrator and user access authority
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Provisioning/configuration/authentication: HTTPS with factory-installed client certificate
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HTTP digest-encrypted authentication via MD5 (RFC 1321)
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Authentication: Extensible Authentication Protocol TLS (EAP-TLS), EAP Tunneled TLS (EAP-TTLS), and
Protected EAP (PEAP)
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SIP over TLS
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Up to 256-bit Advanced Encryption Standard (AES) encryption
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