User's Manual
Avaya Branch Gateway Manager 10.0 Page 296
15-601011 Issue 29r (Friday, November 02, 2012)B5800 Branch Gateway
5.7.12.1 Internal Twinning
Internal twinning can be used to link two system extensions to act as a single extension. Typically this would be used to
link a users desk phone with some form of wireless extension such as a DECT or WiFi handset.
Internal twinning is an exclusive arrangement, only one phone may be twinned with another. When twinned, one acts as
the primary phone and the other as the secondary phone. With internal twinning in operation, calls to the user's primary
phone are also presented to their twinned secondary phone. Other users cannot dial the secondary phone directly.
· If the primary or secondary phones have call appearance buttons, they are used for call alerting. If otherwise, call
waiting tone is used, regardless of the users call waiting settings. In either case, the Maximum Number of Calls
setting applies.
· Calls to and from the secondary phone are presented with the name and number settings of the primary.
· The twinning user can transfer calls between the primary and secondary phones.
· Logging out or setting do not disturb at the primary stops twinned calls alerting at the secondary also.
· Logging out or setting do not disturb at the secondary only affects the secondary.
· User buttons set to monitor the status of the primary also reflect the status of the secondary.
· Depending on the secondary phone type, calls alerting at the secondary but then answered at the primary may
still be logged in the secondary's call log. This occurs if the call log is a function of the phone rather than the
system.
· Call alerting at the secondary phone ignoring any Ring Delay settings applied to the appearance button being
used at the primary phone. The only exception is buttons set to No Ring, in which case calls are not twinned.
· If using a 1400, 1600, 9500 or 9600 Series phone as the secondary extension:
· The secondary extension's directory/contacts functions access the primary user's Centralized Personal
Directory records in addition to the Centralized System Directory .
· The secondary extension's call Log/call List functions access the primary user's Centralized Call Log .
· The secondary extension's redial function uses the primary users Centralized Call Log . Note: The list mode
or single number mode setting is local to the phone.
· On 1400, 1600, 9500 and 9600 Series phones, twinned status is indicated by a T in the display of the secondary
extension.
· For all phone types, changing the following settings from either the primary or secondary extension, will apply the
setting to the primary user. This applies whether using a short code, programmable button or phone menu. The
status of the function will be indicated on both extensions if supported by the extension type.
· Forwarding settings.
· Group membership status and group service status.
· Voicemail on/off.
· Do Not Disturb on/off and DND Exceptions Add/Delete.
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