Network traversal strategy – CounterPath Bria BlackBerry Edition User Guide User Manual

Page 33

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Bria BlackBerry Edition User Guide

29

Network Traversal Strategy

Select a profile:

• Application Managed: STUN Wi-Fi ON, STUN Mobile OFF, 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 either 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.

Field

Description

DNS SRV

• ON: 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.

STUN Server

Used only if STUN is ON. The default is stun.counterpath.com but we recommend that you
change this to an address provided by your VoIP service provider. CounterPath cannot
guarantee the availability of their STUN server.

STUN Wi-Fi

• ON: 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, Global IP should be set to OFF to assure that the private IP address is
used for SIP signaling.

STUN Mobile

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

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