web statisticsweb stats

Business Phone Systems

Support Service-Disabled Veterans!
Discount software from Direct Deals
Previous Thread
Next Thread
Print Thread
Rate Thread
#646716 08/29/24 05:42 PM
Joined: Oct 2006
Posts: 1,408
Likes: 6
Member
Member
Joined: Oct 2006
Posts: 1,408
Likes: 6
The system is SV9100, and has a remote worker that has been using an IP phone at home for many years. Today that worker gets a "Can't send RTP packets" message on the display whenever a call is made.

Both incoming and outgoing calls have no audio. All the display, signalling, etc are ok. Typical firewall/router port setting problem, right?

The IT guy says nothing has changed on his side. The 9100 had not been updated or changed. I've setup an IP phone at my place and have the same results. Classic 'not my problem' scenario. Don't know where to look next.

Thank you.
Jim

Last edited by Yoda; 08/29/24 05:43 PM.
Atcom VoIP Phones
VoIP Demo

Best VoIP Phones Canada


Visit Atcom to get started with your new business VoIP phone system ASAP
Turn up is quick, painless, and can often be done same day.
Let us show you how to do VoIP right, resulting in crystal clear call quality and easy-to-use features that make everyone happy!
Proudly serving Canada from coast to coast.

Joined: Oct 2006
Posts: 1,408
Likes: 6
Member
Member
Joined: Oct 2006
Posts: 1,408
Likes: 6
Well, this one turned out to be some weird firewall thing. They have two ISP's that the firewall takes care of for load balancing and failover.

When this trouble started, they disabled the secondary isp. We had the primary isp's address in the remote phone for the WAN mate adddress.

This morning, in a desparation attempt, IT turned the secondary isp back on in the firewall. And it all worked. They are investigating what, why, etc. but the phone is working now.

Last edited by Yoda; 08/30/24 12:07 PM.
Joined: Aug 2004
Posts: 1,692
Likes: 34
Admin
*****
Admin
*****
Joined: Aug 2004
Posts: 1,692
Likes: 34
Bizarre! Does the 9100 have the external IP programmed in it somewhere? If so, any chance it's set to the backup IP instead of the primary?


[Linked Image from web.atcomsystems.ca]
Looking for a VoIP Phone Canada provider? Put Atcom's valuable VoIP expertise to work for your business today!
Joined: Oct 2006
Posts: 1,408
Likes: 6
Member
Member
Joined: Oct 2006
Posts: 1,408
Likes: 6
Good call, Toner. As it turns out, the IT guy asked the same question a short while ago.

I looked through the 9100 database, and didn't have to go far. In 10-12-07, it asks for the NAPT Router IP. It was populated with the secondary isp's address. Which is the only isp we had at the time of the original install years ago.

When the new isp was added, it was made the primary, and the 9100 never got updated. There was apparently some network issues over the weekend for the secondary, and it showed up on the remote IP phone.

I changed the address and rebooted. It's the little things that get you.


Moderated by  ttech 

Link Copied to Clipboard
Newest Topics
Need hard reset of TD308
by Alan_G - 09/16/24 12:03 PM
DB Programming Software for 8.235
by LukeE. - 09/10/24 07:36 PM
Vertical MBX Voicemail box greeting upload
by BurleyTech - 09/10/24 12:25 PM
Telephone dude in retirement
by Professor Shadow - 09/09/24 07:31 PM
Forum Statistics
Forums84
Topics94,393
Posts639,301
Members49,804
Most Online5,661
May 23rd, 2018
Newest Members
LukeE., BurleyTech, Kobusvant, irjeffb, ALEXKINGTHESUN
49,804 Registered Users
Top Posters(30 Days)
Toner 14
dexman 10
Seth W 8
pvj 8
teleco 6
Who's Online Now
0 members (), 156 guests, and 298 robots.
Key: Admin, Global Mod, Mod
Contact Us | Sponsored by Atcom: One of the best VoIP Phone Canada Suppliers for your business telephone system!| Terms of Service

Sundance Communications is not affiliated with any of the above manufacturers. Sundance Phone System Forums - VOIP & Cloud Phone Help
©Copyright Sundance Communications 1998 - 2024
Powered by UBB.threads™ PHP Forum Software 8.0.0