Phone Systems

Previous Thread
Next Thread
Print Thread
Rate Thread
DT800 Remote Phone Via NAT & VPN Question
#637317 07/01/20 11:52 AM
Joined: Oct 2004
Posts: 110
BIGT Offline OP
Member
OP Offline
Member
Joined: Oct 2004
Posts: 110
I have a DT800 set up to connect over NAT as a test phone. I am having an issue with the remote phone resetting at times, you get Network Busy Error and then reset. The MLC Apps work fine over NAT but the customer wants to go to a more permanent work from home set up with a physical phone for about 50 users. The users are working from individual homes.

VPN Question.
If we used the VPN they do not want to invest in VPN routers for the homes. Has anyone set up the VPN utilizing the built in firmware on the phone? This customer has a Barracuda Firewall. Tried looking on NTAC, but does anyone have a simplified guide to configuring the VPN on the phone itself? Have you had any issues with resets or call quality set up this way?


Anthony Cascarelli

ARG Communications, Inc.
Wilmington, DE 190805

www.whyarg.com
EMP & Lightning Home Surge Protection
EMP - Click Here!
Re: DT800 Remote Phone Via NAT & VPN Question
BIGT #637320 07/01/20 12:24 PM
Joined: Sep 2004
Posts: 3,956
Member
*****
Online Content
Member
*****
Joined: Sep 2004
Posts: 3,956
Resets are caused by a couple of main things. SIP ALG and timeouts because the firewall/router at main site timer is set to low..looking at you Sonicwall..LOL

You need to disable ALL SIP ALG at every site. If you cannot get the firewall at main site to fix their timer (UDP timeout or some nonsense) or are clueless, in the NEC in 15-05-47&48 set these to 90 or 60 and test. The higher the less traffic you put on network.

VPN works but you are using more overhead for this. It can actually make call quality worse.


Moderated by  DrPbx, ttech 

Link Copied to Clipboard
Most Recent 5 Post
outage 12/1/2020
by Ruben - 12/01/20 07:04 PM
test telephone number
by dude - 11/30/20 07:51 PM
DSU Serial Ports
by tylan - 11/30/20 07:21 PM
SVMi20i Error
by Bushmills - 11/30/20 07:00 PM
XTS database downloads crash
by EV607797 - 11/30/20 03:37 AM
Who's Online Now
31 members (Daniel, ALB300, BTS01, data-wolf, Hofman telekom, cswroe, Coral Tech, ABLE1, Greg Ercolano, Yoda, BobRobert, MooreTel, metelcom, Skunky, EV607797, phonemeister, pvj, Mercenary Roadie, Carlos#1, Silversam, nortelvoip, justbill, dexman, jsaad, RATHER BE FISHING, phonman123, usedphones, crazysupratt, Bob3470, PINKBOY1006, Professor Shadow), 292 guests, and 63 robots.
Key: Admin, Global Mod, Mod
Popular Topics (Views)
Forum Statistics
Forums94
Topics94,092
Posts638,002
Members49,386
Most Online5,661
May 23rd, 2018
Today's Birthdays
Salman Imtiaz, SayWhat, Tariq
Newest Members
drextech, d_chats, LukeS, RickToshibaCIX, Geochurchi
49386 Registered Users
Get Tech Support Now! Click the banner below
Get Tech Support Now!
Top Posters (30 Days)
ABLE1 12
Daniel 12
dexman 10
hbiss 9
Bluewater Sailing
https://www.patreon.com/bePatron?u=5256033
EMP Shield for Commercial - Home & Vehicle
Use Coupon code SAVE - Click Here!
Sold AD
Servpro Ventura 24-Hour Emergency Service
Free Estimates call us now 24Hours
Contact Us | Telephone System Tech Support | Terms of Service

Sundance Communications is not affiliated with any of the above manufacturers.
©Copyright Sundance Communications 1998-2020
Trusted Partners