NEC SP5008A - Manual (Page 5)

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1. Introduction
Micronet SP5008A / SP5018A / SP5058A are high-capacity SIP Gateway
Series that provides 8 FXS / 4 FXS + 4 FXO / 8 FXO ports, and suit to build an
IP-based communication platform with other VoIP devices. They meet enterprise’s
requirement for functionality (VoIP) upgrade and larger scale implementation by
interoperating with legacy PABX and IP PBX/Soft-switch.
To connect with legacy PABX, SP5018A supports PABX Mode for PSTN
backup. When network or power fails, PSTN lines (FXO) bypass to FXS ports and
users still can make/receive calls via PSTN lines.
In addition, SP5008A includes some wonderful PABX features for small
business. They help operate users on various VoIP applications, such as extension
calling among 8 FXS ports, inbound/outbound calls via SIP trunk, DID (direct line),
DOD, prefix routing, operator attendant, etc. Users can easily benefit from the
ease-to-use device.
1.1 Key Features
z IETF SIP standards compliant
z Support 1 RJ-45 WAN port and 4 RJ-45 LAN ports
z Support POTS interfaces: 8 FXS / 4 FXS + 4 FXO / 8 FXO ports
z Support single-account registration on FXS ports for representative number
z Support extension calling among FXS ports
z Support rich call features: call hold, call transfer, call forward, hotline, warm line,
speed dial, anonymous call, P2P call, etc
z Support PSTN prefix routing (SP5018A only)
z Support PABX mode for legacy PABX function upgrade (SP5018A only)
z Support PSTN lifeline – PSTN bypass in case of power or registration failure
(SP5018A only)
z Support detection of disconnect tone, polarity reversal, and loop current drop
(zero voltage) on FXO ports
z Well interoperability with industry-leading IP-PBX/Soft-Switch, such as Alcatel,
Lucent, Siemens, etc.