On analog ports, call information is sent while the phone is ringing, and cannot be updated during a call or set on an outbound call (the phone may do a local match but this is not controlled by IP Office). The primary purpose of displays is to give information about incoming calls. Where the caller display standard chosen supports the delivery of text (extension name) as well as the number, both are delivered.

An analog extension port can be set for external paging operation. It does not operate like a normal extension and is connected to external equipment through an isolation device (can also be used as an MoH source). The port will always be busy so it cannot be called directly and can only be accessed by using a paging feature. When not receiving a page, the port will remain silent. When being paged, the page tone is sent before the speech path is opened.

For installations in a rack, this module requires an IP500 V2 Rack Mounting Kit.

This type of module can be used to add 16 additional analog trunks to an IP500 V2 system. The module supports both loop-start and ground-start trunks. The module also provides two powerfail ports for direct connection of analog phones to the first two analog trunks.

Basic Edition systems only support a single ATM16 expansion module. For installations in a rack, this module requires the IP500 V2 Rack Mounting Kit.

For installations in a rack, this module requires the IP500 V2 Rack Mounting Kit.