Lucent Technologies MERLIN LEGEND Release 6.1 Feature Reference page 765

MERLIN LEGEND Communications System Release 6.1
Feature Reference 555-661-110
Features
Uniform Dial Plan Features
Transfers with consultation can be made across the network, but they cannot be
voice-announced. These transfers must be made using telephones; they cannot
be made by CTI-linked PassageWay Telephony services clients. Transfers
between extensions on different networked systems are actually trunk-to-trunk
transfers. Although transfers to non-local dial plan extensions can be made
regardless of trunk-to-trunk transfer prohibitions, such transfers made over
tandem tie trunks behave like trunk-to-trunk transfers, providing no transfer
returns. If the transfer is made over tandem PRI facilities and the non-local
extension is unavailable, the call returns to the transfer originator if the intended
destination is busy, invalid, or has Do Not Disturb active with no coverage.
UDP routing distributes intersystem calls among networked system users, as well
as DID and PRI dial-plan routed calls that arrive from the public switched
telephone network and are routed across the network. It allows the system
manager to prioritize routes used for calls and set up special routes, for
distributing 2B data calls to remote videoconferencing systems, for example. This
routing is distinct from the ARS and Remote Access features used when
extensions on one networked system make outside calls by using lines/trunks
connected to another system in the same private network. For detailed
information on setting up network tandem trunks, refer to the Network Reference .
Considerations and Constraints
Calls to a non-local dial plan extension are treated as outside calls for the purpose
of conferencing. Each non-local conference participant who is added takes up one
of the two outside calls permitted in a conference. For example, if a user has
added two outside calls to a conference, it is not possible to add a non-local dial
plan extension. Similarly, if two outside parties are already participating in a
conference, and an attempt is made to add a third participant on the local switch,
the local user can be added if he or she answers the call.
Trunk-to-trunk transfer restrictions assigned to extensions are not applied to the
following types of calls:
A call on a private network trunk transferred to a non-local dial plan
extension
A call on an outside central office line/trunk transferred to a non-local dial
plan extension
A call on a private network trunk transferred to an outside central office
line/trunk
Consult the Network Reference for information about restricting calls on
extensions in a network. Note that if an extension receives an outside call
transferred from a non-local extension over a tandem trunk, the user can then
transfer this outside call to an outside PSTN facility, possibly bypassing intended
restrictions.
when, for example, an extension user is working at home and
wants to receive calls at a home telephone number.
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Issue 1
August 1998
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