Samsung OfficeServ 500 General Description Manual page 18

TEPRI/TEPRIa DIGITAL TRUNK
When programmed as a T1 this card provides up to 24 trunk circuits in any combination of the following:
• Loop start lines
• DID (Direct Inward Dialing)
• Ground start lines
• E & M tie lines or two way DID calling
When the card is programmed as a PRI it will provide 23 bearer channels and 1 data channel (23B+D). This card
can be installed in any of the first three slots of any cabinet.
MGI2 (MEDIA GATEWAY INTERFACE)
The MGI2 card supports 16 VOIP channels. These channels are H.323 and SIP compliant and are used in conjunc-
tion with either the G.711 (64K) or G.729A (8K) voice compression protocols. The MGI2 card may be installed in
any universal card slot up to a maximum of 5 cards per cabinet. The MGI2 only supports in-band signaling.
The MGI2 cards provide the following services on a per-channel basis:
• H.323 IP Trunking (VoIP connections to other H.323 gateways)
• SIP IP Trunking
• ITP Phones
• IP Networking (Networking multiple OfficeServ 500 and OfficeServ 100 systems over IP networks)
Note: There is a maximum of 5 MGI cards per cabinet (15 per system). All 5 can be MGI2 or a combination of MGI2
and MGI3 cards, as long as there is no more than 2 MGI3 cards per cabinet.
MGI3 (MEDIA GATEWAY INTERFACE)
The MGI3 card supports up to 16 VoIP channels. There are 8 embedded on the card. An additional 8 channels can
be added by plugging in a daughterboard.
The MGI3 has the capabilities of the MGI2 plus the following:
• G.723.1 (5.3K-6.4K) CODEC
• G.729 (8K) CODEC
• T.38 Fax CODEC
• H.245 Trunking
• Out-of-band signaling of DTMF tones
Note: There is a maximum of 5 MGI cards per cabinet (15 per system). All 5 can be MGI2 or a combination of MGI2
and MGI3 cards, as long as there is no more than 2 MGI3 cards per cabinet.
E911 CARD
The E911 card supports up to 4 CAMA (Centralized Automatic Message Accounting) type loop start trunks to pro-
vide CESID (Caller Emergency Services ID). These trunks are connected directly to the PSAP (Public Services
Answering Point) to pass on calling station information to enable the emergency services to correctly locate the
source of the call such as a building floor.
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