Internet Protocol Resource Card (Iprc; Communication Types; Ip Endpoints And Trunks; Inter-Tel Private Networking - Inter-Tel AXXESS Manual

3.9 There is a variation of NAT called PAT (Port Address Translation) in which the trusted
IP address and port are translated dynamically to an outside IP address and (different) port. For
the purposes of this appendix, the term NAT includes true PAT as well as true NAT.

4. INTERNET PROTOCOL RESOURCE CARD (IPRC)

4.1
Axxess systems support the use of IPRCs to provide VoIP communications for IP end-
points, IP gateway trunks, or IP networking. At least one IPRC is required to provide VoIP
capabilities, but there may be applications for multiple IPRCs in a single system. Refer to the
IPC/IPRC and IP Endpoint Firmware Notice (part no. 835.2720) for details about available
IPRC firmware versions.

5. COMMUNICATION TYPES

5.1 The following communication types are discussed in this appendix.
•
Administration
•

IP Endpoints and Trunks

•

Inter-Tel Private Networking

•
Computer Telephony Integration (CTI)
•
Enterprise Conferencing
•
System Manager
A. ADMINISTRATION
5.2 The Axxess system provides administrative functions through its network connection.
These functions include:
•
Inter-Tel Database (DB) Programming
•
Inter-Tel System Manager
•
Web-based diagnostics
•
Diagnostics Monitor
•
TFTP: Trivial File Transfer Protocol
•
SSH/Telnet/USB Console
B. IP ENDPOINTS AND TRUNKS
5.3 The Axxess system communicates to endpoints through IP. IP endpoints support an
Inter-Tel proprietary protocol known as Inter-Tel Proprietary (ITP) mode as well as the indus-
try-standards protocol SIP (Session Initiation Protocol), MGCP (Media Gateway Control Pro-
tocol), OAI (Open Architecture Interface), RTP (Real-time Transport Protocol), etc.
C. INTER-TEL PRIVATE NETWORKING
5.4 The Axxess system is capable of connecting with other Axxess systems and Inter-Tel
5000 platforms to form a network that supports many call processing features. This networking
capability can be implemented using point-to-point T1 or PRI circuits, or it can be imple-
mented using IP. This appendix is focused on IP-based Inter-Tel networking. See
— Networking
Internet Protocol Resource Card (IPRC)
®
INTER-TEL AXXESS
for information on how to set up and program IP or T1 networking.
Appendix F – Network Topology
®
MANUAL VERSION 11.0 – May 2008
Appendix A
Page F-5