Patton electronic 07MSN4980-90 ユーザーズマニュアル

Voice connectivity

SmartNode 4980 & 4990 User Manual 

Refer to the software feature matrix for the most up-to-date specifications.

1 or 4 PRI T1/E1 ports on RJ48C connectors

Net/User configurable per port

Each port can be slave or master clock

Each port can be used to synchronize to an external clock master

Failover relay between ports 0/0 and 0/1 for specific models

Two 10/100/1000Base-Tx Gigabit Ethernet ports

All ports full duplex, autosensing, auto-MDX

Up to 120 full-duplex channels with Voice CODECS:

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G.711 A-Law/ -Law (64 kbps)

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G.726 (ADPCM 16, 24, 32, 40 kbps)

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G.723.1 (5.3 or 6.3 kbps)

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G.729ab (8 kbps)

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Transparent ISDN data

G.168 echo cancellation (128 ms)

Up to 120 simultaneous voice or T.38 fax calls

DTMF detection and generation

Carrier tone detection and generation

Silence suppression and comfort noise

Adaptive and configurable dejitter buffer

Configurable tones (dial, ringing, busy)

Configurable transmit packet length

RTP/RTCP (RFC 1889)

Automatic fax and modem detection

Codec fallback for modem-bypass

T.38 Fax-Relay (Gr. 3 Fax, 9.6 k, 14.4 k)