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DIMENSIONING - LIMITSCALL SERVER : VOICE ON IP
Ed. 04 7/8Réf. 3EH 21000 BSAA
LIMITS & RECOMMENDATIONS
VoIP services
Voice over IP services require a software key.
VoIP CoCPU board
There can be a maximum of 6 boards in a system: one "master" board and five "slave" boards.
The "master" VoIP CoCPU board will be the first
board seen by the system. If a VoIP CoCPU board is
added to the system, it will be considered as a "slave" board.
A VoIP CoCPU board is equipped with a daughter board of 4, 8 or 16 DSPs maximum.
An Alcatel OmniPCX Office can contain a maximum of 96 DSPs.
If there is more than one VoIP CoCPU board in a system, each of the Ethernet ports of each board
must be connected to the LAN and they must be connected to the same subnet
.
It is possible to combine VoIP CoCPU boards with a different number of DSPs: if the system combines
the IP Telephony and H.323 Gateway services, it is strongly recommended for the board with the lar-
gest number of DSPs to be the "master" board and that its IP address should be used as the reference
for the remote H.323 gateways.
The VoIP CoCPU boards are to be connected via a LAN Switch: this solution reduces Ethernet access
traffic.
DSP channels
After a cold reset, all the DSPs of the VoIP CoCPU board are assigned to the VoIP subscribers channels
pool by default. The DSP allocation can be modified using MMC-PM5.
Any DSP allocated to the VoIP access pool is removed from the VoIP subscriber pool: it will therefore
no longer be available for IP telephony. Conversely, a DSP from the VoIP subscriber pool will not be
able to be used for H.323 gateway calls.
IP Enabler
The theoretical limit on the number of IP Enabler + PIMphony IP stations that can be connected is 200,
however:
- it is obligatory for the operator station to be a Reflexes station connected to a UA link, which means
that at least one UAI board must be installed in the system,
- the IP Enablers are "deducted" from the limit on Reflexes stations.
The Ethernet access of an IP Enabler is at 10 Mbps (IP Enabler V1) or 10/100 Mbps (IP Enabler V1S).
"VoIP Access" channels: H.323 gateway
A DSP channel of a VoIP CoCPU board assigned to the pool of VoIP access channels is considered by
the system to be a public network access, that is to say "1 B channel".
Alcatel OmniPCX Office can have a maximum of 120 public network accesses: the maximum number
of DSPs assigned to the VoIP access pool is 96.
Network accesses (T0, T2, DLT2, TL, ATL) + VoIP accesses ≤ 120
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