Axis C8033 User Manual page 14

AXIS C8033 Network Audio Bridge
Voice over IP (VoIP)
7. Click Save.
NOTICE NO NO TICE TICE
Allowing incoming calls enables the AXIS product to accept calls from any device connected to the network. It is
recommended to disable incoming calls for products that are accessible from public networks or the Internet.
Note
Even if you choose to not enable SIP , you can configure the SIP settings. But remember that when SIP is disabled, you
cannot make or receive calls.
SIP Setup Assistant
The SIP Setup Assistant helps you with the SIP configuration. After completing all the steps in the setup assistant, the product is
ready to perform basic VoIP actions, such as receiving a call. Each time you finish the SIP setup assistant, new action rules and
DTMF rules will be created.
Port Settings
• SIP port – Enter the port used for SIP sessions. The signalling traffic through this port will be non-encrypted. The default
port number is 5060.
• SIP TLS port – Enter the port used for SIPS sessions and TLS-secured SIP sessions. The signalling traffic through this port
will be encrypted using Transport Layer Security (TLS). The default port number is 5061.
• RTP start port – Enter the port used for the first RTP media stream in a SIP call. The default start port for media transport
is 4000. Some firewalls might block RTP traffic on certain port numbers. A port number must be between 1024 and 65535.
Note
If the PBX changes the port used for SIP messages, it is possible to receive a notification regarding this. Go to VoIP > Account
Settings and click Modify. Select the Network-tab and select Allow port update messages through MWI.
Network Address Translation (NAT) Traversal (port forwarding)
Use NAT traversal when the Axis product is connected to the network behind a NAT router or firewall device.
Without SIP -specific port forwarding, users of clients within the same private network would be able to talk to each other but
users of clients in different networks would not.
The following NAT traversal settings are available:
• STUN – Session Traversal Utilities for NAT (STUN).
• TURN – Traversal Using Relays around NAT (TURN).
• ICE – Interactive Connectivity Establishment (ICE).
Each NAT traversal protocol can be used separately or in different combinations depending on the network environment.
Note
For more information about the product's general NAT traversal settings, see NAT traversal (port mapping) for IPv4 on page 30.
Interactive Connectivity Establishment (ICE)
Interactive Connectivity Establishment (ICE) enables the product to send a request that includes multiple addresses to the receiving
device. In its response, the receiving device also includes multiple addresses. Through a process of connectivity checks, also called
handshakes, the channel for communication is established.
ICE increases the chances of finding the most efficient path to successful communication between peer devices. If you also enable
STUN and TURN, you improve the ICE protocol's chances of finding the most efficient path to successful communication.
Available from A1 Security Cameras
www.a1securitycameras.com email: sales@a1securitycameras.com
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