6 preferences - calls, Preferences – calls, 6 preferences – calls – CounterPath Bria 3.5 Administrator Guide User Manual

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Bria 3 Administrator Guide

49

4.6 Preferences – Calls

Field

Description

Auto Answer

Let your users set these fields to suit.

DTMF

Choose the method for sending DTMF that is supported by your VoIP service provider.

In-band means that Bria will encode the DTMF signals in the audio stream as regular sound.
Typically, DTMF is not sent in-band; in-band is only used in specific situations.

One scenario in which it might be advisable to send in-band is if you own your gateways and:

• One or more of these gateways does not support 2833 or does not handle it well, and

• Your gateway is using codes that reproduce DTMF tones well.

In this case, sending in-band will ensure that DTMF tones get through (because the DTMF tones
will bypass the gateway) and that they reproduce accurately at the receiving end.

RTP

The RTP inactivity timers control how phone calls are disconnected when RTP and/or RTCP are
not detected. You can choose to enable or disable the timers. The timers are enabled by default.

If you leave the timers enabled, you can set the value of the RTCP timer. The RTP timer is fixed
at 30 seconds.

• Bria ends a call if it has never detected RTCP in the call and no RTP is received for the length

of the RTP timer (30 seconds).

• Bria ends a call if it has detected RTCP on this call but then it does not receive an RTCP for

the length of the RTCP timer (default value: 300 seconds). You can change the length of this
timer.

Preserve Bandwidth

When this feature is on, Bria stops sending audio when you are not talking.

When this feature is off, Bria always sends audio, which uses more bandwidth but may result in
better call quality.

Typically off. However, if you are using a slow (dial-up or ISDN) connection, you may want to
turn it on.

Web Page Tabs

You can set up a web page as a new tab in the Resources panel; it will appear alongside
Contacts, History and so on.

Enter the web address and a name (this name will be appear in the tab). Enter a checkbox to
create the tab.

At any time, the user can clear the checkbox to remove the tab from the Resources panel.

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