The following table is a summary only. Support for particular types of extension, trunk and user ports also depends on other factors such as local support variations. For example, BRI trunks are not supported in North American locales.
For more detailed capacity notes, refer to the "IP Office Platform Guidelines: Capacity" document.
|
IP Office Partner Mode |
IP Office Norstar Mode |
IP Office Basic Edition |
IP Office Essential Edition IP Office Preferred Edition IP Office Subscription |
Extensions |
Maximum Extensions |
100[1] |
100[1] |
100[1] |
384 |
Trunks |
Maximum Trunks |
64 |
64 |
64 |
–[5] |
- Analog Trunks |
32 |
32 |
32 |
204 |
- BRI Channels[3] |
– |
12 |
12 |
32 |
- PRI Channels[4] |
24 |
30 |
30 |
240 |
- SIP Channels[2] |
20 |
20 |
20 |
–[5] |
- H323 IP Channels |
– |
– |
– |
–[5] |
100 Extensions in 3-digit extension numbering mode. 48 extensions in 2-digit extension numbering mode.
For IP Office Basic Edition modes, the system assumes that the base control unit is always fully populated with up to 32 extensions, either real or phantom or a mix, to which it assigns extension numbers in sequence.
In all modes, voice compression hardware resources are also required for SIP support.
IP Office Basic Edition mode systems do not support BRI and PRI trunks in the same system. They are also restricted to 12 BRI channels regardless of the BRI hardware installed.
IP Office Basic Edition mode systems are limited to 1 x single-port PRI card.
Capacity is dependent on licenses, voice compression resources and available bandwidth.
