CounterPath Bria 3.1 Configuration Guide - OEM Deployments - Manual (Page 18)

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2.9 DTMF
This group of settings configures Bria to handle DTMF. DTMF will be sent using either:
• Out-of-band using 2833 DTMF packets
• Out-of-band using 2833 DTMF, with a fallback to in-band.
• In-band, by encoding the DTMF signal in the audio stream.
The preferred method is out-of-band. In-band is used only to deal with specific network situations, as described
in the reference section for these settings.
2.10 Feature Enabling at the Account Level
Skip this section if you are configuring Bria for Linux.
The setting proxies:proxyn:enabled_features enables or disables the following features on each account:
• Audio call
• Video call
• IM
• Presence
This setting is a bitmask with a default value that enables every feature.
Minimum Configuration
Bria has rules relating to features on accounts. Because you are configuring accounts through provisioning, you
are responsible for ensuring these rules are followed.
At least change the setting as follows:
• Set IM to disabled on all accounts, then enable it either on the XMPP account (if supported) or on one SIP
account only.
• Set Presence to match IM.
If you do not change the settings’ default value in this way, then for a while the setup you have configured will
work. But the first time the user makes a change (even something as harmless as changing their display name)
and then clicks Apply on the Accounts List, Bria will enforce these internal rules. At that point, the behavior of
Bria will change, seemingly for no reason, resulting in confusion for the user.
Optional Configuration for Phone Calls
If desired, you can impose further restrictions on use of phone calls on different accounts. For example, you
may want to implement a business rule that only Account 1 is used for phone calls. If you disable phone calls on
an account, make sure to disable it for both audio and video.