Inter-Tel AXXESS Manual page 590

System Features
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INTER-TEL AXXESS
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Overlap Sending and Receiving
NOTE:
BRI Net 3 switch types, which are prevalent in the European and Mexico markets.
10.30 With overlap sending, the phone system can send some or no called number digits in
the setup message and send additional digits (or overflow digits) in subsequent information
messages. You can also program the system to use the overlap sending protocol immediately. If
this option is selected, the setup message contains no called number digits, and all digits are
sent in subsequent information messages as the digits are dialed.
10.31 With overlap receiving, the phone system can receive some or no called number digits
in the setup message, followed by overflow digits in information messages. The phone system
does not route the call based on these digits until it receives an indication from the network
provider that all digits have been sent. If the network provider does not send such an indica-
tion, the phone system waits until the Overlap Receiving Timeout Timer has expired. After this
timer has expired, the call is routed based on the digits received.
10.32 Prior to version 8.224, the phone system sent/received all Called Number digits in the
ISDN setup message for outgoing calls. This process of sending/receiving digits is referred to
as "en bloc," however, this is not compatible with some network providers in the European
ISDN market. To accommodate these markets, version 8.224 now supports the "overlap" send-
ing method, which allows the phone system to send digits in setup and information messages.
10.33 For details about programming overlap sending and receiving, see
Page 5-64
MANUAL VERSION 11.0 – May 2008
Primary Rate Interface (PRI): This is the ISDN circuit that provides B-channels that
can carry voice, data, and video simultaneously. It also has one D-channel for out-of-
band signaling and packet data. Note that the Inter-Tel system does not support the use
of the D-channel for packet data. See also 23B+D and 30B+D.
Primary Rate Interface Nodal/Centrex Express: This service type allows communi-
cation between a PBX system and a Centrex system. This is not supported in the cur-
rent system software.
Private Line Integration: This allows the system to have private lines using individual
channels. The D-channel is not used on the private lines. This is not supported in the
current system software.
Switched Digital Services: Switched digital services provide ISDN over a single tele-
phone line by combining several B-channels into a single bit stream. Switched digital
service types include H0, H11, Multi-rate, and NX 64 kbps. This is not supported in the
current system software.
Two-Stage Caller Identification (*ANI*DNIS*): This is a two-stage address service
that provides both the caller's telephone number and the dialed number. It combines the
*ANI* and the *DNIS* features described above.
User-To-User Information (UUI): This type of ISDN service allows two users to share
and manipulate data information over the D-channel while maintaining a voice connec-
tion on a B-channel. For example, both parties can view the same document, discuss it,
edit it and see the changes as they are made. This is not supported in the current system
software.
Wide Area Automatic Call Distribution (ACD): Like the system ACD feature, this
service can distribute calls to provide faster service. However, Wide Area ACD allows
the calls to be sent to other PBXs in the network. This is not supported in the current
system software.
Currently, the overlap sending/receiving protocols are supported with PRI Net 5 and
page 6-141.
Overlap Sending and Receiving