Fortinet Technologies Inc. Page 179 FortiVoice Enterprise Phone System 4.0.0 Administration Guide
Figure 62: Editing T1/E1 card
GUI field Description
Standard Options
Name The name of this span. This is view-only.
Type Select the span type: PRI T1 or PRI E1.
A T1 span usually supports 23+1 channels, while an E1 span
supports 30 channels in CAS (Channel Associate Signaling)
mode and 30 B channels and one D channel in ISDN mode.
Signalling Select the signaling type of the ISDN PRI:
• PRI signalling, CPE (Customer Premises Equipment) side
• PRI signalling, Network Side
• PRI R2 signalling
Hardware
echo
cancellation
Select to enable the FortiVoice echo cancellation function to
improve the quality of voice communications.
Hardware
DTMF
detection
Select to enable the FortiVoice unit to detect dual-tone
multi-frequency signals, such as touch-tone signals, from the
incoming calls.
This option does not need to match that of your PSTN service
provider.
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