
IP Server 900 Hardware Installation Manual
System capacities
D.1
System capacities
Important:
Each ESI Presence Management RFID Reader (digital model) consumes one digital phone port.
Phones and COs
The specifications shown below reflect system maximum capacities and configurations. Not all of the phone and
CO maximums can be reached simultaneously.
Dialing plans (-digits)
Four
Three
Maximum modules
8
8
CO Line groups 9, 8, 71–76
Yes
Yes
SIP CO capability
Yes
Yes
Maximum port configuration
1
500
400
– Maximum phones
191
168
– Maximum IP phones
127
127
– Maximum digital phones
64
64
– Maximum analog phones
32
32
Maximum CO lines
192
84
– Maximum T1/PRI Modules
2
2
– ESI-Link channels
127
127
– Total number of SIP COs
127
84
Max. members, CO ring assignment list
64
64
Dedicated ports
Dialing plans (-digits)
Four
Three
Voice mail/auto attendant ports
32
32
Conference ports
(max. of 16 members per conference)
64
64
Overhead paging ports
1
1
Serial/SMDR ports
n/a
n/a
Departments
Dialing plans (-digits)
Four
Three
Max departments
64
20
Department types: Ring-all, ACD, UCD, in-
order, pick-up, attendant
Yes
Yes
Max members, non-ring-all depts.
64
64
Max members, ring-all depts.
64
64
Automatic Call Distribution (ACD)
Dialing plans (-digits)
Four
Three
Max ACD departments
64
64
Max ACD agents per department
64
64
Max ACD agents (system-wide)
191
168
Shared-office tenanting
Dialing plans (-digits)
Four
Three
Tenants
8
8
Translation tables
Dialing plans (-digits)
Four
Three
Pilot numbers
100
100
Max. DID entries
600
600
1
Includes ESI-Link channels.