Private Ip Networking - Inter-Tel AXXESS Manual

19. PRIVATE IP NETWORKING

19.1 Previously, the Internet Protocol (IP) Networking Module (3200N) was the primary
method to connect Inter-Tel systems to IP networks (for details on the IP Networking Module,
see the IP Networking Module Manual, document part no. 730.8001).
19.2 As of v7.0, however, a v1.x firmware networking Internet Protocol Resource Card
(IPRC) or v8.x or later firmware IPRC can be programmed to provide private networking
using an IP network.
A. COMPATIBILITY WITH EXISTING PRODUCTS
19.3 The telephone system supports several private networking configurations with various
components. The compatibility of these components must be considered when setting up a pri-
vate network. Between any two endpoints, there can be IPRCs, T1/PRI, E1/PRI or T1/E1/PRI
cards, and IP Networking Modules. Each of these components can only communicate with like
components.
19.4 For example, an IPRC can communicate directly with another IPRC, but not with a T1/
PRI, E1/PRI, or T1/E1/PRI card or with an IP Networking Module. While the IPRCs, T1/PRIs,
T1/E1/PRIs, and IP Networking Modules cannot communicate directly, they can still be used
in the same system multi-node network (see
B. RESOURCE ALLOCATION
19.5 System resources for Private IP Networking are allocated in the following manner:
•
DSP Resources: The system allocates DSPs upon call setup. If the DSPs necessary to
complete a call are not available, the call camps-on to the DSPs and the system does not
deliver the call to its destination until the resources are available.
•
Camp-Ons: Similar to private networking using T1/E1/PRI, the system first attempts to
route a call using every programmed route. If all routes fail, the system then camps-on
to the first programmed route.
•
Transfers: The system does not release DSP resources following a transfer, even if
those resources are no longer needed for the current audio configuration.
For example, device A on node 1 calls device B on node 2 using DSP W on node 1 and
DSP X on node 2.
Device B transfers the call to device C on node 3 using DSP Y on node 2 and DSP Z on
node 3 for the transfer announcement call.
Private IP Networking
®
INTER-TEL AXXESS
A
DSP W
NODE 1
A
DSP W DSPs X and Y
NODE 2
NODE 1
®
MANUAL VERSION 11.0 – May 2008
page A-2 for an illustration).
B
DSP X
NODE 2
B
DSP Z
NODE 3
System Features
C
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