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Mitel MiVoice Business/MCD/3300 / Re: Level 3 SIP and Mitel 3300
« on: September 11, 2014, 09:04:06 AM »
You don't necessarily need an MBG for SIP trunking. It is just an option because it is SIP aware which some firewalls aren't. I have seen SIP delivered on an existing MPLS circuit, via a T1 like you have and through an MBG. If you use an MBG it needs a SIP license for each SIP trunk. The 3300 also needs a SIP license for each SIP trunk. Think you will need to program SIP trunks on the 3300 and will likely give it the IP address of the router as the registration source. Think I say a doc for programmming to Level 3 on MOL.