Network traversal strategy – CounterPath Bria Android Edition 3.0 User Guide User Manual

Page 63

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Bria Android Edition User Guide

59

Network Traversal Strategy

Speak to your VoIP service provider about the strategy to use. Make sure that
you change the STUN Server field.

•Application Managed: STUN On and DNS SRV On.

Bria will use the specified STUN server to discover the public address of your

device. It will present your public address for SIP signaling. When
negotiating media routing, it will present both your public and private
addresses or just your public address depending on the ICE settings under
Account Advanced.

•Server Managed: STUN Off and DNS SRV On.

Bria will present your device’s private address for SIP signaling and when
negotiating media routing. Choose this option if your VoIP service provider
advises you that it has implemented a network-hosted NAT traversal (or far-
end NAT traversal) technology such as a session border controller (SBC),
media proxy or RTP relay.

•Custom Configuration: Set the settings as desired.

Enable PRACK

• On: Bria advertises that it supports “100rel” and allows PRACK, as defined in RFC

3262. The outgoing INVITE message will have “100rel” in the Supported header and
“PRACK” in the Allow header. This is the default behavior in previous Bria versions.

• Off: Bria will not advertise these features; there will be no “100rel” in the Supported

header.

Encode # in URI

• On (default): Bria escapes a hash character (#) used in the user part of SIP URI, as

required by RFC 3261.

• Off: Bria does not escape a hash character and sends it as is. Turn this setting off if you

are having trouble making outgoing calls to a number with a hash character.

Verbose Logging

Leave this setting OFF unless customer support instructs you to turn it ON in order to
troubleshoot a problem you are having on your device. See page 65.

Send Log

Tap to upload the current log to customer support. See page 65.

Call Statistics

To show detailed information about the current/last call. For example, the number of
packets lost.

For an ongoing call, you can refresh the statistics information by either tapping the
Refresh button or enabling Auto Refresh on the Call Statistics screen. When Auto
Refresh is enabled, the information will get updated every second.

Field

Description

STUN Wi-Fi

• On (checked): Bria will use a STUN server to discover your public IP address.

• Off: Bria does not discover your public IP address. Therefore, only the private IP

address will be used. Typically in this case, Global IP should be turned off.

STUN Mobile

This setting has the same function as STUN, but applies only when you are connected
over mobile network.

DNS SRV

• On (checked): Bria will use DNS SRV to discover the network addresses for your

VoIP service provider's VoIP-related services such as a STUN server, if any.

• Off: Bria will not use DNS SRV for discovery. Only turn this setting off if your

system administrator advises you to do so.

Field

Description

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