3Com VCX Manual page 80

does not start ringing on the primary. Do Not Disturb is enabled only for subsequent
calls. This is also true for a secondary telephone user who toggles the Do Not Disturb
setting while a call is ringing.
If the primary telephone enables Do Not Disturb and a call comes in from a hunt group,
the Do Not Disturb setting is ignored and the call rings on the primary. If a secondary
telephone enables Do Not Disturb and a call comes in from a hunt group to the primary
phone, the call does not ring on the secondary phone.
Hands Free and Bridged Line Calls
Enabling the Hands Free feature has the following effect on bridged calls:
If the primary telephone has Hands Free enabled, a call rings briefly on the
secondary telephone before it is automatically answered by the primary phone.
If the secondary telephone has Hands Free enabled, only calls made to the
secondary's telephone extension are answered Hands Free. Calls to primary
telephone are not answered Hands Free on the secondary phone; they appear as
normal bridge calls.
Call Forward, Forward to Voice Mail, and Bridged Line Calls
Enabling Call Forwarding and Forward to Voice Mail (or enabling both features) has the
following effect on bridged calls:
If the primary telephone enables Forward to Voice Mail, calls ring once on the
primary and secondary phones, and then go to voicemail.
If the primary telephone enables Call Forward Universal, calls to the primary go to
the Call Forward Universal destination immediately and do not ring on the primary or
secondary phones.
If a secondary telephone enables Forward to Voice Mail or Call Forwarding to
another extension, these settings affect only calls to the secondary telephone
extension. A bridged call rings on both the primary telephone and secondary phone.
If a call is ringing on the primary telephone and the secondary phone, and the
primary telephone user presses the Forward to Voicemail button, the call is forwarded
to primary phone's voice mailbox and the secondary telephone stops ringing.
If a call is ringing on the primary telephone and the secondary phone, and the
secondary telephone user presses the Forward to Voicemail button, call will continue
ringing on both phones.
Call Transfer, Call Conferencing, and Bridged Line Calls
Bridged calls can be transferred by either the primary telephone or the secondary
phone. The primary telephone user and secondary telephone user can also set up a
conference with a bridged call.
If the primary telephone is on a bridged call and presses the Transfer button, the
primary telephone user hears a dial tone. The user can then enter a telephone number
to start attended or unattended call transfer. While the primary telephone user enters
the telephone number, the calling party is put on hold. However, the light for BSA line on
the secondary telephone remains on (does not blink as it would for a non-bridged call
on hold).