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FireBrick SIP Configuration: Difference between revisions

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=Overview=
=Overview=
[[File:Pbvoipicon.png]]
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[[File:Pbvoipicon.png]]Also see: [http://www.firebrick.co.uk/fb2700/voip.php FireBrick VoIP Page] which has more details about the feature, as well as the [http://www.firebrick.co.uk/manuals.php?PRODUCT=2700 FireBrick Manuals] which contain a VoIP section.

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Also see: [https://www.firebrick.co.uk/support/knowledge-base/voip/ FireBrick VoIP Page] which has more details about the feature, as well as the [https://www.firebrick.co.uk/support/manuals/0 FireBrick Manuals] which contain a VoIP section.


The FireBrick can be used for VoIP by being a VoIP gateway (FBSIP). Your local (or remote) SIP devices register against the FireBrick, and the FireBrick registers to your SIP provider, in a sense the Firebrick acts as a back-to-back SIP gateway.
The FireBrick can be used for VoIP by being a VoIP gateway (FBSIP). Your local (or remote) SIP devices register against the FireBrick, and the FireBrick registers to your SIP provider, in a sense the Firebrick acts as a back-to-back SIP gateway.
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==SIP and NAT==
==SIP and NAT==
First, a few comments about SIP, NAT and the FireBrick...
First, a few comments about SIP, NAT and the FireBrick...

The FireBrick maps ports and IPs for NAT but provides no ALG for SIP or any other protocol. SIP is notoriously difficult with any sort of NAT, with or without ALGs. AAISP will be happy to route a block of IP addresses for use with VoIP phones, and the FireBrick can be configured to use these, and even allocate phones from the same manufacturer the correct IP by DHCP.
The FireBrick maps ports and IPs for NAT but provides no ALG for SIP or any other protocol. SIP is notoriously difficult with any sort of NAT, with or without ALGs. AAISP will be happy to route a block of IP addresses for use with VoIP phones, and the FireBrick can be configured to use these, and even allocate phones from the same manufacturer the correct IP by DHCP.


Retrieved from "http://support.aa.net.uk/FireBrick_SIP_Configuration"