Mitel Teleworker Extension to Extension Issue

We have a Mitel 3300 running  Release 4.1 SP1 along with the Mitel Border Gateway MBG V6.0.6.0  Currently we have 19 devices utilizing the MBG from various home user locations. The issue we are have seen is the following.
Teleworker phone is able to make and receive calls fine. Also able dial extensions to other teleworker phones & phones within the corporate network fine. Unable to receive calls from inside the network when dialing extension to extension. Phone rings, caller picks up no audio for either side of the call.
We have been able to make configuration changes on the various home routers to make it work. However we currently have 1 user that has a Linksys E2000 router and from what we can tell all firewall settings have been shut off. Still the same problem. If anyone has any ideas I would be very grateful!
Thanks
633000Asked:
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633000Connect With a Mentor Author Commented:
We were able to fix it by upgrading the Firmware of the Linksys Router. From Ver 1.0.01 to Ver 1.0.02. Once that was done phone worked fine.
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ewkellyCommented:
Can you allow all connections to and all responses from the Teleworker
Gateway IP address.
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ewkellyCommented:
From the technical docs.....
Alternatively, a more restrictive approach would be to configure the firewall with the following:
• Allow a bi-directional TCP connection to destination port 6801 and 6802 on Teleworker Solution IP
address
• Allow bi-directional TCP connections to destination ports 3998 and 6880 on the Teleworker Solution
IP address (for 5235, 5330, 5340 and Navigator set features)
• Allow incoming UDP from source ports 20000 to 23000 on Teleworker Solution IP address
• Allow outgoing UDP to destination ports 20000 to 23000 on Teleworker Solution IP address
• Allow bi-directional TCP connections to destination ports 2114, 2116, 35000 and 37000 on the
Teleworker Solution IP address, if using Your Assistant
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