Cisco WRP400-G1 Administration Guide - Page 109

InBand, AVT, INFO, Auto, InBand+INFO, AVT+INFO., Strict, Normal

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Advanced Voice Fields Line page A DTMF Tx Method DTMF Tx Mode DTMF Tx Strict Hold Off Time: FAX Process NSE Hook Flash Tx Method Select the method to transmit DTMF signals to the far end: InBand, AVT, INFO, Auto, InBand+INFO, or AVT+INFO. InBand sends DTMF using the audio path. AVT sends DTMF as eypents. INFO uses the SIP INFO method. Auto uses InBand or AVT based on the outcome of codec negotiation. The default is Auto. DTMF Detection Tx Mode is available for SIP information and AVT . Options are: Strict or Normal. The default is Strict for which the following are true: • A DTMF digit requires an extra hold time after detection. • The DTMF level threshold is raised to -20 dBm. • The minimum and maximum duration thresholds are: • strict mode for AVT: 70 ms • normal mode for AVT: 40 ms • strict mode for SIP info: 90 ms • normal mode for SIP info: 50 ms This parameter is in effect only when "DTMF Tx Mode" is set to "strict," and when"DTMF Tx Method" is set to out-ofband; i.e. either AVT or SIP-INFO. If a user inadvertently sets the value to less than the default value, the system checks and reverts to the default value. There is no max limit on what the user can set of this parameter. A larger value will reduce the chance of talk-off (beeping) during conversation, at the expense of reduced performance of dtmf detection, which is needed for interactive voice response systems (IVR). Default is 90 ms. To use the fax process NSE feature, select yes. Otherwise, select no. The default is yes. Select the method for signaling hook flash events: None, AVT, or INFO. None does not signal hook flash events. AVT uses RFC2833 AVT (event = 16). INFO uses SIP INFO with the single line signal=hf in the message body. The MIME type for this message body is taken from the Hook Flash MIME Type setting. The default is None. Cisco Small Business WRP400 Administration Guide 107

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Advanced Voice Fields
Line page
Cisco Small Business WRP400 Administration Guide
107
A
DTMF Tx Method
Select the method to transmit DTMF signals to the far end:
InBand, AVT, INFO, Auto, InBand+INFO
, or
AVT+INFO.
InBand sends DTMF using the audio path. AVT sends DTMF
as eypents. INFO uses the SIP INFO method. Auto uses
InBand or AVT based on the outcome of codec negotiation.
The default is
Auto
.
DTMF Tx Mode
DTMF Detection Tx Mode is available for SIP information
and AVT . Options are:
Strict
or
Normal
. The default is
Strict
for which the following are true:
•
A DTMF digit requires an extra hold time after detection.
•
The DTMF level threshold is raised to -20 dBm.
•
The minimum and maximum duration thresholds are:
•
strict mode for AVT: 70 ms
•
normal mode for AVT: 40 ms
•
strict mode for SIP info: 90 ms
•
normal mode for SIP info: 50 ms
DTMF Tx Strict
Hold Off Time:
This parameter is in effect only when "DTMF Tx Mode" is
set to "strict," and when"DTMF Tx Method" is set to out-of-
band; i.e. either AVT or SIP-INFO. If a user inadvertently sets
the value to less than the default value, the system checks
and reverts to the default value. There is no max limit on
what the user can set of this parameter. A larger value will
reduce the chance of talk-off (beeping) during
conversation, at the expense of reduced performance of
dtmf detection, which is needed for interactive voice
response systems (IVR).
Default is
90 ms
.
FAX Process NSE
To use the fax process NSE feature, select yes. Otherwise,
select no.
The default is
yes
.
Hook Flash Tx
Method
Select the method for signaling hook flash events: None,
AVT, or INFO. None does not signal hook flash events. AVT
uses RFC2833 AVT (event = 16). INFO uses SIP INFO with
the single line signal=hf in the message body. The MIME
type for this message body is taken from the Hook Flash
MIME Type setting.
The default is
None
.