Aastra OpenCom 510 User Manual page 205

Frequently Asked Questions Telephony
It is not possible to make external calls with one of the telephones.
Check whether a user is configured for the telephone. Otherwise the settings of
the Guests user group are valid for the telephone. To standard, this user group has
no external call authorisation.
Make sure the user configured for this telephone belongs to a user group with
external line access (Configurator, User Manager: User groups menu).
Check also whether the internal call number of this telephone has been con-
figured for incoming call distribution (Configurator, PBX Configuration: Call Dis-
tribution menu).
One of the features (e.g. call diversion) on one of the telephones cannot be
used even though the feature has been configured in the Configurator of the
OpenCom 510.
Make sure the user configured for this telephone belongs to a user group that has
access to this feature (Configurator, User Manager: User and User groups
menus). Some features cannot be used until the system PIN is changed.
Nothing is indicated on the display of one of the connected ISDN telephones.
You have connected the ISDN telephone to an external S port (RJ-45 socket).
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These ports are intended for connection to the NTBA only. Connect the telephone
to an internal S port (pressure terminal).
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Calls can be made but not received with one of the ISDN telephones.
The internal call number that has been configured for this ISDN telephone in the
Configurator (PBX Configuration: Ports: S0 menu) must also be configured as
an MSN on the ISDN telephone itself. For further information, refer to the User
Guide of your ISDN telephone.
An ISDN telephone always rings, if another telephone on the S bus is being
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called.
This case also requires configuring the MSN on the ISDN telephone (see above
answer).
It is not possible to configure Call Distribution: Outgoing for multi-terminal
access.
You have configured multi-terminal access and system access in parallel. All out-
going calls are therefore established via system access, and outgoing call distri-
bution can be configured for system access only (Configurator, Call Distribution
menu).
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