NEC SV8500, Manual

Page: 49 / 3438

INTRODUCTION
INT-23
MG-PRI/PRA
Media Gateway Primary Rate Access Interface (MG-PRI/PRA) is an interface between IP network and ISDN,
and it provides an efficient network and cost-effective network through interaction with the Telephony Server
by using the IP network via MG.
MG-SIP128/96/16
Media Gateway-Session Initiation Protocol (MG-SIP) is an interface that enables your system to build a multi-
service and reliable Voice over IP (VoIP) networks using Session Initiation Protocol (SIP) defined by IETF. SIP
is an application-layer control protocol that can initiate call setup, routing, authentication and transferring other
feature messages to endpoints.
VS-32 Conference Server
VS-32 Conference Server allows a user to use 32-party conference (32 channels), 16-party conference (16 chan-
nels) + 16-party conference (16 channels), or 8-party conference (8 channels) + Announcement (4 channels) +
IP External Hold Tone (4 channels).
MG(BRI) [SCA-2BRIA/MG-2BRIA]
MG(BRI) [SCA-2BRIA/MG-2BRIA] is a media gateway to provide gateway function between ISDN network
and IP network. MG(BRI) can accommodate a maximum of two ISDN lines. MG(BRI) works in SIP mode, that
is, the controlling signal between the Telephony Server and MG(BRI) adopts Session Initiation Protocol (SIP).
Controlling signal and voice packets are encrypted to ensure security feature.
PWR ON
LINE
MG-SIP
LINK/ACT SPEED
Ether1
Ether2
1 2 3 4
ON
PWR
LOAD
ON
LINE
MG-SIP16
MG-SIP128/96
PWR ON
LINE CONF ANNC
BUSY
CF MOH
VS-32(V)
B D B D
ALM PWR
ON
LINE
EMA TEL
LINE0 LINE1 Ether
100M LINK CONSOLE
RESET
MUSIC
MG(BRI) Box [MG-2BRIA]
MG(BRI) Card [SCA-2BRIA]
B D B D
ALM PWR
ON
LINE
EMA TEL
LINE0 LINE1 Ether
100M LINK CONSOLE
MUSIC
RESET