1-5
Cisco VG248 Analog Phone Gateway Software Configuration Guide
OL-1209-02
Chapter 1 Overview
Understanding How the VG248 Supports Telephony Features
Basic
This mode provides the most basic phone interface with no call transfer or
conference features. Basic mode might work best for fax machines or modems.
See
Table 1-1
for details about how the telephony features are accessed in basic
mode.
Standard
Standard is the default telephony mode, and it provides standard Bellcore
features, such as used in North America.
Users use the flash button or hook flash to transfer, conference and hold calls,
with the following requirements:
•
You cannot use a double hook flash to end a call.
•
When putting calls on hold, the first call can be either incoming or outgoing.
•
When transferring a call or establishing conferences, the second call must be
outgoing.
Users also use feature codes to activate other features in standard mode. See
Table 1-1
for details about how the telephony features are accessed in standard
mode.
Feature
For simple calls, the feature mode is indistinguishable from the standard mode.
While on calls, users use the flash button or hook flash to get a second dial tone
to dial a second party. However, users then must enter feature codes to transfer
the call or establish a conference.
When using feature mode with two calls established, the hook flash cycles around
four states:
1.
First call connected
2.
Feature code tone
3.
Second call connected
4.
Feature code tone
