Mgi Operational Concepts - Samsung Officeserv 7100 Technical Manual

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OfficeServ 7100 SPECIAL APPLICATIONS
TECHNICAL MANUAL PART 2 JANUARY 2009
OfficeServ 7400 MGI Functional Overview

MGI Operational Concepts

The MGI supports several VoIP services. In supporting multiple services the MGI ports
are capable of using different protocols (IE Proprietary, SIP or H.323) automatically on
a per port basis as needed. This allows the mixing of different standards on the same
MGI card(s).
In certain applications there may be a need to separate or segregate the card(s) for
specific uses. An example of this is where there are two MGI cards mounted and one
card is used exclusively as a VoIP trunk gateway and the second card is used to
support ITP keyphones. In this case each card can be defined as to what service it will
provide. IE. VoIP trunking gateway use or ITP keyphone use. In another case, where
the MGI has 16 VoIP channels, it is possible to segregate or partition some of these
channels for ITP keyphones and use the remaining channels for trunking gateway use
on the same card.
In order to understand the task of segregating MGI cards for traffic or grading purposes
the following is a brief description of the multiple uses of an MGI card. MMC 615: MGI
Group allows separation of these services. By default all MGI ports are available for all
services.
MGI Services
Each of the MGI services provide for private network and public network exposure. This
allows connectivity to the public Internet without exposing the private network. This
allows router traversal by remote ITP keysets and far end gateway services and
systems. Public network and Private network relationships will be reviewed further on in
this Special Applications section.
H.323 Trunking Gateway
The MGI card(s) when used as a VoIP trunking gateway allows VoIP call connectivity to
opposite MGI's, or other H.323 standards based VoIP gateways. Calls placed in this
mode are treated like IP tie line trunk calls. As a tie line type trunk, incoming digits are
expected. Programming allows routing of incoming calls based on incoming digits,
digit translation or trunk ring destinations. Outgoing calls are made by selecting the
trunk or trunk group and dialing the appropriate digits to reach a predetermined
destination. The flexible programming allows outgoing digit manipulation with LCR like
routing.
2.6.10