Grandstream Networks UCM6510 IP PBX User Manual page 74

MIN RX Flash
MAX RX Flash
Enable Polarity Reversal
Echo Cancellation
3-Way Calling
Send CallerID After
Other Settings
Fax Detection
Skip Trunk Auth
Firmware Version 1.0.0.25
VoIPon www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299
The valid range is -30dB to +6dB. The default setting is 0.
Configure the minimum period of time (in milliseconds) that the hook-flash
must remain unpressed for the PBX to consider the event as a valid flash
event. The valid range is 30ms to 1000ms. The default setting is 200ms.
Configure the maximum period of time (in milliseconds) that the hook-
flash must remain unpressed for the PBX to consider the event as a valid
flash event. The minimum period of time is 256ms and it can't be
modified. The default setting is 1250ms.
If enabled, a polarity reversal will be marked as received when an
outgoing call is answered by the remote party. For some countries, a
polarity reversal is used for signaling the disconnection of a phone line
and the call will be considered as hangup on a polarity reversal. The
default setting is "Yes".
Specify "ON", "OFF" or a value (the power of 2) from 32 to 1024 as the
number of taps of cancellation.
Note:
When configuring the number of taps, the number 256 is not translated
into 256ms of echo cancellation. Instead, 256 taps means 256/8 = 32 ms.
The default setting is "ON", which is 128 taps.
Configure to enable/disable 3-way calling feature on the user. The default
setting is enabled. For example, when enabled, if the FXS extension has
established a call with User A -> Press "Flash" to open a new line -> FXS
extension calls User B -> Press flash again, it will establish 3-way
conference call with User A and User B.
Configure the number of rings before sending CID. The default setting is
1.
Enable to detect Fax signal from the user/trunk during the call and send
the received Fax to the Email address configured for this extension. If no
Email address can be found for the user, send the received Fax to the
default Email address in Fax setting page under web GUI->PBX->Internal
Options->Fax/T.38.
Note:
If enabled, Fax Pass-through cannot be used.
If enabled, users will not need enter the "PIN Set" required by the
outbound rule to make outbound calls. The default setting is "No".
UCM6510 IP PBX User Manual Page 72 of 229