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Feature Description
Access protocols
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PPP
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Serial Line Internet Protocol (SLIP)
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TCP Clear
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IPXCP
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ATCP
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ARA
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NBFCP
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NetBIOS over TCP/IP
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NetBEUI over PPP
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Protocol translation (PPP, SLIP, ARA, X.25, TCP, local-area transport [LAT], and Telnet)
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XRemote
Bandwidth optimization
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Multilink PPP (MLPPP)
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TCP/IP header compression
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Bandwidth Allocation Control Protocol (BACP)
Voice codecs and fax protocols
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G.711 mu-law, G.711 a-law, G.729 a, G.729 ab, G.726 16K, 24K, 32K, G.728, G-Clear
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Adaptive Multirate: AMR-NB 4.75K, 5.15K, 5.9K, 6.7K, 7.4K, 7.95K, 10.2K, 12.2K, SID
Voice codecs and fax protocols
High-density packet voice/fax DSPs
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G.711 mu-law, G.711 a-law, G.729 a, G.729 ab, G.726 16K, 24K, 32K, G.728, G-Clear
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Adaptive Multiratemultirate: AMR-NB 4.75K, 5.15K, 5.9K, 6.7K, 7.4K, 7.95K, 10.2K, 12.2K, SID
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G.723.1 5.3K, 6.3K, G.723.1A 5.3K, 6.3K, iLBC
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T.38 Real-Time Fax Relay
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Super Group 3 fax interoperability
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Cisco Real-Time Fax Relay
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Fax detection
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Fax pass-through
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T.37 Store and Forward Fax
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Modem Relay, modem pass-through
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RFC 2833, H245 and Inband DTMF Relay and SIP NOTIFY and SUBSCRIBE
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Media Authentication and Encryption using Secure RTP (H.323)
Voice compression and fax protocols
Universal DSPs
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G.711, G.723.1 (5.3 and 6.3 KB), G.726, G.729ab, G729a, G-Clear, and GSM-FR
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T.38 Real-Time Fax Relay
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T.37 Fax Store and Forward
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Fax pass-through
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Modem pass-through
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Fax detection
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RFC 2833, H245 and Inband DTMF Relay and SIP NOTIFY and SUBSCRIBE
DSP voice features
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G.711, G.723.1 (5.3-KB and 6.3-KB), G.726, G.729ab, G729a, G-Clear, and GSM-FREcho cancellation,
programmable up to 64 ms
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Transparent transcoding between a-law and mu-law encoding
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VAD, silence suppression, and comfort-noise generation
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Fixed and adaptive jitter buffering
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Call progress tone detection and generation—Dial tone, busy, ring-back, congestion, and reorder tones
with local country variants
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DTMF, multifrequency, and Continuity Testing (COT)
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Per DS-1 modification of IP-side attenuation
Voice signaling protocols
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H.323v4, SIP, MGCP 1.0, TGCP 1.0, VoiceXML, RTSP, and ESMTP
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Fax out (transmission) Group 3, standards EIA 2388 Class 2 and EIA 592 Class 2.0, at modulations
V.33, V.17, V.29, V.27ter, and V.21Open Settlements Protocol (OSP)
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Media Recording Control Protocol (MRCP)
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TTS servers
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ASR servers
SS7
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Integrated SLT functions for MTP1 and MTP2 layer termination
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IUA and RUDP backhaul of SS7 messages
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