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Equipment List
Installation and Upgrades for G700 and S8300 361
December 2003
The MM720 BRI Media Module contains eight ports that interface to the central office at the
ISDN T reference point. Information is communicated in two ways:
Over two 64 Kbps channels called B1 and B2 that can be circuit-switched simultaneously
Over a 16 Kbps channel called the D channel that is used for signaling. The D channel occupies
one time slot for all eight D channels.
The circuit switched connections have a u-law or A-law option for voice operation. The circuit
switched connections operate as 64 Kbps clear channels when in the data mode.
The MM720 BRI Media Module does not support BRI stations, or combining both B channels
together to form a 128 Kbps channel.
Material Code: Apparatus Code: MM720 Optional
ComCode (for Services Ordering Only): 700221138
MM760 VoIP Media Module
The MM760 VoIP Media Module is a clone of the motherboard VoIP engine. It provides an
additional 64 VoIP channels with G.711 compression. Each chassis base system can support up to
64 G.711 single channel calls. If the desire is to have an essentially non-blocking system, an
additional MM760 VoIP Media Module needs to be added if more than two MM710 T1/E1
Media Modules are used in a single chassis. This will provide for an additional 64 channels.
This VoIP conversion resource in the G700 Media Gateway is an improved version of the
Prowler board resource and from a configuration perspective, the two are the same. The capacity
is 64 G.711 TDM/IP simultaneous calls, or 32 compression codec (G.729 or G.723) TDM/IP
simultaneous calls. These call types can be mixed on the same resource, so we say that the
simultaneous call capacity of the resource is 64 “G.711 Equivalent Calls”.
Material Code: 170901 Apparatus Code: MM760 Optional
ComCode (for Services Ordering Only): 700221179
Table 20: Equipment List: Media Modules Continued
Media Modules
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