Messages

1

MiVoice Office 250/Mitel 5000 / Re: Mitel 5000, 53xx Phones and VPN

« on: November 05, 2015, 10:59:15 AM »

Thanks TE for the solid response.  This is the type of information that we are after.  Your response provided some glimmer of hope for out situation.  We've done some testing and have been successful with some older InterTel 86xx phones.  They connect to the Mitel 5000 as expected over VPN.  However, we are having challenges with the Mitel 53xx series phones.  Any trick to getting those to work over VPN?  Outiside of VPN tunnels over fiber DIA, is there anything else that can optimize our phone experience?

2

MiVoice Office 250/Mitel 5000 / Mitel 5000, 53xx Phones and VPN

« on: November 04, 2015, 04:45:38 PM »

We just found these forums and are glad we did!  Briefly reading through the current topics, there are appears to be some great info available to us Mitel users.  I'd like to pose our current situation to the community to hopefully address our concerns and initial questions.

Currently, we take advantage of MPLS to network our locations.  Each location's MPLS connection is comprised of a minimum of 2 T1s with the exception of our data center connection, 9Mb/DS3.  We are looking at eliminating the MPLS (due to cost) and take advantage of our 50Mb fiber DIA (possibly looking to increase to accommodate MPLS traffic) at every location.  We would take advantage of site-to-site VPN through our firewalls (Sonicwall NSA 2400s and 1 Cisco 5510 at the data center) for connectivity.  We have a Mitel/InterTel 5000 at the data center with SIP trunks activated.  We have a mix of InterTel 86xx and Mitel 53xx phones at multiple locations.  Our questions/concerns are:

1. Does the Mitel 5000 support VPN connectivity and if so, what is quality like compared to our current MPLS setup?
2. Is there a recommend network setup for use over VPN and if so, what is that?
3. Is there anything special that needs to be done to the phone to allow them to contact the PBX?
4. What type of bandwidth per phone should be expected?
5. Should we place the PBX in a DMZ and host phones that way?

This is very important to us and we need to be able to plan this carefully.