Aastra 470 - IP Media Modules

Expansion Stages and System Capacity
58
Aastra 470 ab R3.0
syd-0337/1.5 – R3.0 – 05.2013
3. 3. 1. 2 IP media modules
IP media modules can be used for systems with high call switching requirements in
the IP network. Depending on the module type a different number of VoIP and FoIP
channels are available, provided by the IP media modules as required (see Tab. 22).
Note
The use of the IP media switch does not depend on the mode of opera-
tion of the standard media switch and the configuration of the DSP chips
that are used by the standard media switch.
Fig. 13 Design of the IP media modules
IP media modules can be fitted both to the processor card CPU1 (see Fig. 9) and to
the 1PRI and 2PRI trunk cards (see Fig. 15). The modules are not stackable.
Tab. 21 IP media module
The number of VoIP channels per IP media module depends on both the type of
module and the use of voice channels:
Tab. 22 Max. number of voice channels per IP media module
Type
Number of modules
per CPU1 processor
card
Number of mod-
ules per 1PRI trunk
card
Number of mod-
ules per 2PRI trunk
card
Max. number of
modules per system
EIP1-8
1125
EIP1-32
Type
G.711 only,
Secure G.711
G.711/G.729,
Secure G.711/G.729
FoIP (T.38)
EIP1-8 32 8 8
EIP1-32 64 28 28