Global Switching Module (GSM) Considerations
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Overview
This section discusses the engineering considerations for the SIP
global switching module (GSM).
Capacity
The GSM supports up to 48 SIP protocol handlers (PHs); however,
the current Ethernet grounding plate design limits the maximum
number of SIP PHs to 16.
The GSM supports up to a sum total of 16 Signaling System 7 (SS7)
QPHs and General QLPS Protocol Handlers (GQPHs). An office
supports up to a sum total of 59 SS7 QLPS protocol handlers (QPHs)
and GQPHs.
Note:The DRM/VCDX does not support any QPHs, neither CCS nor
GQPHs.
Table 4-1, “IOST model BHC capacities” (4-4) , Table 4-2, “IOSE
model BHC capacities” (4-4) , and Table 4-3, “PSTNGW-LT model
BHC capacities” (4-4) show BHC capacities for other interfacing
hardware components.
Table 4-1 IOST model BHC capacities
Component BHC
SMP60MM 120K (at 90% capacity)
SMP60MM 100K (at 75% capacity)
CORE700 480K (at 90% capacity)
CORE700 400K (at 75% capacity)
Table 4-2 IOSE model BHC capacities
Component BHC
SMP60MM 100K (at 90% capacity)
SMP60MM 82K (at 75% capacity)
CORE700 300K (at 90% capacity)
CORE700 268K (at 75% capacity)
Table 4-3 PSTNGW-LT model BHC capacities
Component BHC
SMP60MM 100K (at 90% capacity)
Engineering Considerations
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4-4
Lucent Technologies 235-200-118
Issue 3.02B, March 2007
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