Cisco DPC2425 Scheda tecnica - Pagina 4
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Product Specifications
Table 3.
Product Specifications
Specification
Value
Voice Specifications
Call Signaling Protocol
MGCP/NCS including configurable IPsec encryption
Configurable to support RFC2833 event signaling
Supports Bell103 detection: Improves alarm panel and Point of Sale (POS) interoperability by
optimizing DSP for Bell103 protocol
Software upgradeable to support Session Initiation Protocol (SIP)
The following SIP standards are supported
● RFC 2617 HTTP Authentication: Basic and Digest Access Authentication
● RFC 2976 The SIP INFO Method
● RFC 3261 SIP: Session Initiation Protocol
● RFC 3262 Reliability of Provisional Responses in Session Initiation Protocol (SIP)
● RFC 3263 Session Initiation Protocol (SIP): Locating SIP Servers
● RFC 3264 An Offer/Answer Model with Session Description Protocol (SDP)
● RFC 3265 Session Initiation Protocol (SIP)-Specific Event Notification
● RFC 3420 Internet Media Type message/sipfrag
● RFC 3428 Session Initiation Protocol (SIP) Extension for Instant Messaging
● RFC 3515 The Session Initiation Protocol (SIP) Refer Method
● RFC 3842 A Message Summary and Message Waiting Indication Event
Package for the Session Initiation Protocol (SIP)
● RFC 3892 The Session Initiation Protocol (SIP) Referred-By Mechanism
● RFC 3903 Session Initiation Protocol (SIP) Extension for Event State Publication
● Draft-ietf-mmusic-sdp-new-24 SDP: Session Description Protocol (Replacement for RFC 2327)
● Draft-ietf-sipping-cc-transfer-01 Session Initiation Protocol Call Control – Transfer
● Draft-ietf-sip-session-timer-08 The SIP Session Timer
● Draft-ietf-sipping-realtimefax-01 SIP Support for Real-time Fax: Call Flow
Examples And Best Current Practices
● Draft-ietf-mmusic-sdescription-09 Session Description Protocol Security
● Descriptions for Media Streams
● Draft-ietf-sip-replaces-02 The Session Initiation Protocol (SIP) "Replaces" Header
Provisioning Modes
Full PacketCable secure provisioning
Kerberos support with NVRAM ticket caching
Configurable PacketCable-lite (MTA config file provisioning without security)
Configurable for non-PacketCable (MTA configuration using DOCSIS config file)
CODECs
Standard: G.711, T.38 Fax Relay, iLBC and BV16
Software upgradeable to support other CODEC combinations including:
● G.711 and G.728
● G.711 and G.729
● G.711 and G.729 a/e
● G.711 and BV16 and BV32 (High fidelity – near CD quality)
● G.711 and G.723
● G.711 and G.726
CODEC Packetization
10, 20, and 30 mS
Intervals
CODEC Synchronization
CODEC synchronization to UGS time clock allows slip-free end-to-end sync to PSTN clock
(minimizes frame slips that can cause Fax/Analog Modem call failures)
CODEC Encryption
Configurable to support AES-128 encryption or no encryption modes
Hearing Impaired Services
TDD support including detection of V.18 including Annex A
Support
Fax and Analog Modem
DSP based Modem/Fax Tone detection and support for Voice Band Data Mode with auto-
support
CODEC negotiation and auto-control of echo canceller, jitter buffer, and VAD
Jitter Buffer Support
Adaptive dynamically controlled
Latency Control
Configurable min / max jitter buffer size
Data Sheet
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