SIP Trunks on MCD 5.0

[EPearson]

We are just in the beginning stages for implementing SIP trunks on our 3300. Is Mitel Border Gateway required for SIP Trunks?

 

[wireman50]

Not required; the 3300 will support directly. Given that they are supported by mitel. There are a list of those that have passed interop.

MBG will give you a fire-walled SIP implementation. If the SIP trunks are set up to work only to the 3300 and the SIP provider they are fairly safe. If its a general authenticated connection then you have to be more careful and this is where you might consider a MBG. We just set the firewall so that the 3300 will only use SIP to the providers IP address for connection so the provider will have to be hacked for the naughty boys to get in (thats as we understand it anyway). there are also other firewall that you may consider that work via call patterns etc. rather than via the trunks directly.

 

[kwbMitel]

Make sure your provider is interop tested. I cannot stress this enough.

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What's most important is that you realise ... There is no spoon.

 

[LoopyLou]

Have used SIP trunks with and without an MBG. All comes down to the SIP provider and how they want to deliver them. The MBG can be used to help troubleshoot and provides other services. as kwbMitel says the success of the project often depends on whether the provider is on the interop list or if they are willing to work to get the trunks working ( rather then just saying its not their problem ). If the provider is interested you might be able to engage Mitel to work with them to get the provider added to the list.

I'd tell you a UDP joke but I'm afraid you won't get it. TCP jokes are the best because you always get them.

 

[bobcheese]

Your gateway is also another factor to consider. Dependent on the service provider you may be required to provide a SIP ALG function and not all firewall/routers can provide this function. MBG will provide this function.