System Guide

SME VOIP SYSTEM GUIDE 4.7 23 | P a g e
Proprietary and Confidential
“In use”: When active calls on base
SIP IDENTITY STATUS
Shows list of extensions present at this base station.
Format: “extension”@“this base IP address”(“server name”) followed by status to
the right. Below is listed possible status:
OK: Handset is ok
Error: SIP registration error
REBOOT
Reboot after all connections are stopped on base. Connections are active calls,
directory access, firmware update active
FORCED REBOOT
Reboot immediately.
5.3 Extensions
In this section, we describe the different parameters available whenever the administrator is creating extensions for
handsets. Note, it is not possible to add extensions if no servers are defined. As well the section describes the
administration of extensions and handsets using the extension list and the extension list menu.
The system can handle maximum 1000 extensions matching 1000 handsets which can be divided between servers.
When 1000 handsets are registered it is not possible to add more extensions. With active multiline feature, the system
can handle maximum 1000 extensions. With 4 active lines in multiline maximum 200 handsets can be active in the
system.
Note: Within servers or even with multi servers, extensions must always be unique. This means same extension
number on server 1 cannot be re-used on server 2.
5.3.1 Group call
Call Group is a SIP extension where multiple handsets are associated. All handsets that subscribe to a given extension
(and hence Call Group) can receive incoming calls and initiate outgoing calls on the given extension. It is possible for
any handset to perform any call action which is possible without the Call Group feature. That is, call actions as Hold,
transfer etc. are possible if the PBX supports them.
When an incoming call arrives to a given Call Group, all Call Group subscribed handsets will alert. Thus, if a Call Group
contains 20 handsets, all 20 handsets will alert.
An alerting handset cannot receive another incoming call, and therefore if a handset subscribes for multiple Call
Groups, and a call arrives for a 2nd Call Group while the handset is alerting, the handset will not receive this call. If
DND is enabled for a given handset, it will not receive the incoming call.
For outgoing calls, it can be selected in the handset which line (i.e. Call Group) to use for the call. The maximum
number of lines is 20. For any outgoing actions, the settings for the selected line (SIP extension) will be used.
NOTE: Group call, does not work with paired headset.