Specifications

System Hardware
INTER-TEL
®
CS-5200/5400 ADMINISTRATOR GUIDE, ISSUE 1.0 – April 2005
Page 80 Inter-Tel Protocol (ITP) Mode
Inter-Tel Protocol (ITP) Mode
When the multi-protocol endpoints operate in ITP mode, the endpoints function like traditional
Inter-Tel endpoints. The endpoints connect to Inter-Tel’s advanced communications platforms
via an IP stream to the IP Resource application running an Inter-Tel proprietary protocol. This
is the same protocol that the Model 8660 uses. The main difference is that the multi-protocol
endpoints connect to the system via IP.
The advantage of ITP mode over SIP mode is that ITP mode allows you to use the features and
functionality that the system provides for a traditional endpoint. The disadvantage of ITP mode
over SIP mode is that when the endpoint is in ITP mode, it cannot connect to another vender’s
switch. All of the multi-protocol endpoints are configured to use ITP by default.
To support multi-protocol endpoints in ITP mode, a Call Processing software license is
required.
Session Initiation Protocol (SIP) Mode
When the multi-protocol endpoints are in SIP mode, the endpoints use SIP to connect to the
Inter-Tel SIP Server (v1.1 or later). The advantage of running in SIP mode on an Inter-Tel
advanced communications platform is the use of the Shared Extension feature. A shared exten-
sion allows up to five SIP endpoints to use the same extension number on the same system.
Incoming calls to a shared extension are sent to SIP endpoints simultaneously. Once one of the
endpoints answers the call, the SIP Server cancels the call to all other endpoints. This provides
you with mobility so that you do not miss any calls when you are away from your main desk.
Another advantage of SIP mode is that the endpoint can run on another vendor’s switch that
supports SIP. The disadvantage of SIP mode on an Inter-Tel advanced communications plat-
form is the reduced feature set.
ITP and SIP Supported Features
Users can access most features by entering a feature code using the endpoint’s dialpad buttons.
The following table shows the station features (and default feature codes) that are supported
for endpoints operating in ITP mode and SIP mode.
Support for some features varies by device. For a complete list of supported features refer to
the appropriate user guide. See Table 40 on page page 247 for a table of user guides and part
numbers.
Table 16.
ITP and SIP Features and Feature Codes
√ = supported; x = not supported
FEATURE NAME
FEATURE
CODE
ITP MODE SIP MODE
Account Code – Following Calls 391
√
x
Account Code – Optional 390
√
x
ACD Agent Log In 326
√
x
ACD Agent Log Out 327
√
x
ACD Agent Log In/Out 328
√
x
ACD Agent Wrap-Up Terminate 329
√
x
Agent Help Request 375
√
x
Agent Help Reject 376
√
x
Answer (Ringing Call) 351
√√
Automatic Intercom Access On/Off 361
√
x