OfficeServ 7400 INSTALLATION
TECHNICAL MANUAL PART 3 APRIL 2011
3.50
3.3.19 OAS (OPTIONAL APPLICATION SERVICES)
The OAS card is a 64 DSP Optional Application Services card. It contains 64 configurable DSP’s
that can be used as MGI channels, MOBEX DTMF receivers (listed as MOBEX DSP in MMC 850)
used by the Executive MOBEX feature, or a mix of both (determined by MMC 858). MGI
channels are enabled in 4 port increments, and each increment will decrease the number of
MOBEX DSP’s as shown in the chart below.
OPTION 16 TIMESLOTS 32 TIMESLOTS 64 TIMESLOTS
0
MOBEX:16 ONLY MOBEX:32 ONLY MOBEX:64 ONLY
1
MGI:04+MOBEX:12 MGI:04+MOBEX:28 MGI:04+MOBEX:48
2
MGI:08+MOBEX:08 MGI:08+MOBEX:24 MGI:08+MOBEX:32
3
MGI:12+MOBEX:04 MGI:12+MOBEX:16 MGI:12+MOBEX:16
4
MGI:16 ONLY MGI:16 ONLY MGI:16 ONLY
In addition to these configurable DSP’s the OAS card has dedicated DSP’s used to provide 64
Media Proxy Service (MPS) channels. MPS channels allow IP phones to talk to IP trunks
without the use of an MGI. The settings for these MPS channels are found in MMC 843 after
setting MPS SERVICE to ON in MMC 861.
SPECIFICATIONS
• The OAS can be installed in any OS7400 universal slot.
• Up to 16 OAS cards can be installed in the OS7400.
Figure 3.49 Front View of the OAS
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