Instruction manual

Networking and connectivity
555-233-767148 Issue 4 May 2003
Attendant return call
If a call that is transferred by the attendant goes unanswered for a specified period
of time, the call is returned to the attendant. Preferably the call will transfer back
to the attendant who transferred the call.
Priority queue
QSIG MSI will pass more information to the main PBX. This information enables
calls coming in from a QSIG CAS branch to be placed in the appropriate place in
the queue, as if the call originated on the main PBX.
RLT emulation through a PRI
ISDN QSIG trunks will route calls from the branch PBX to the main PBX. You no
longer have to specify a dedicated RLT network. The QSIG path replacement
takes care of the trunk optimization. You have the flexibility to route calls to the
main PBX.
Communication Manager/Octel QSIG
integration
Communication Manager enables integration of Octel messaging servers through
QSIG.
Leave Word Calling (LWC)
See ‘‘Leave Word Calling (LWC)’’ on page 109.
Manufacturer-Specific Information (MSI)
QSIG handles non-standardized information that is specific to a particular PBX or
network. This information is known as Manufacturer Specific Information (MSI).
A manufacturer can define manufacturer-specific supplementary services
operations after it has:
■ Applied to a sponsoring and issuing organization (ECMA or European
Computer Manufacturers Association in this case)
■ Been assigned an organization identifier. This organization identifier is
used as the root of the manufacturer-specific service-operation value.
All MSI operation values should be unique to that manufacturer.