Samsung Officeserv 7100 Technical Manual

Also see for OFFICESERV 7100: Quick guide System administration guide User guide User manual User guide

Contents

OfficeServ 7100 SPECIAL APPLICATIONSTECHNICAL MANUAL PART 2 JANUARY 20092.6.7MGI Card RelationshipsTheory of OperationWhen an IP call is directed to the OfficeServ 7100 system the MP10/MP10a performsthe call control and setup to the remote calling or called IP endpoint.Once the MP10/MP10a negotiates the setup a determination is made if the IP call isintended to be received by another IP device on the IP side or a TDM port on the circuitswitched side of the OfficeServ 7100. When the request is for a circuit switched sideconnection, the MP10/MP10a controls the MGI and sets up a channel for the IP call touse a codec on the MGI as a gateway to the circuit switched environment. The MGIsupports the voice codec to the trunks or stations inside the OfficeServ 7100 system.All other controls are managed by the MP10/MP10a. i.e. Setup, teardown, LED statusupdates in the case of the ITP series keyphones.The same theory of operation applies on an incoming IP call. The called IP address isthe MP10/MP10a card. The MP10/MP10a informs the calling IP party that the voiceportion of the call will be managed by the MGI. See Figure 3.Figure 3. MGI and MP10/MP10a LAN RelationshipITP Keyphone, MGI and MP10/MP10a RelationshipsITP Keyphone and iDCS Keyphone OperationThe ITP 5100 series keyphones use the MGI as the voice gateway when connected tothe OfficeServ 7100 system stations or trunks. The MP10/MP10a is involved to providecall setup and tear down, programmable button functions, displays and system featureaccess.ITP 5100 series keyphones provide Auto Codec Negotiation and follows the VoIPcodec settings of the MGI card(s) used. There can be more ITP keyphones thanMGI MP10/MP10aLANOn-board MGI or MGI-16 card