[Okta Webinar] Learn how to a build a cloud-first strategyRegister Now


NBX V3000 Voicemail issues

Posted on 2009-02-11
Medium Priority
Last Modified: 2013-12-27
Background: I inheritied a 3Com NBX V3000 VOIP appliance when I started with this company; at the time, everything worked fine.  A few months ago we switched from DSL to a T1 line that included 6 voice lines.  A contractor was brought in to assist with swapping the physical lines and making sure the voice lines worked properly.  After re-configuring the Line Card Ports, everything seemed to be working fine.

Problem:  Recently several customers reported to my boss that they'd left him a voicemail but he didn't have a notification nor when he logged into his voicemail, was there any in his mailbox.  We did some testing and discovered that if you make a person-person internal call, it works fine; you get to their voicemail, can leave a message, and it shows up.  If you call from an outside line, you will be routed to their voicemail and can leave a message but it doesn't seem to be saved; if the user logs into their voicemail, it will be empty.

I've gone through the Admin documents and all the settings that make sense and I can't find anything to clue me in on what is wrong.  Any help/light/information on the subject would be much appreciated.
Question by:kollenh

Author Comment

ID: 23634884
Looks like we managed to resolve it ourself.  For other's reference, here is what we found:
An article on 3COM's knowledgebase mentioned that their equipment requires at least a 600 millisecond disconnect signal from the Telco equipment.  I opened a case with our T1 provider and they adjusted the signal from 500ms to 750ms and the problem went away.
Some of the related symptoms that make sense now is the fact that internal transfers worked fine, it was only external calls and that we had 16 instances of going over the 5 minute voicemail limit.

Accepted Solution

EE_AutoDeleter earned 0 total points
ID: 23808425
Because you have presented a solution to your own problem which may be helpful to future searches, this question is now PAQed and your points have been refunded.


Featured Post

Fill in the form and get your FREE NFR key NOW!

Veeam is happy to provide a FREE NFR server license to certified engineers, trainers, and bloggers.  It allows for the non‑production use of Veeam Agent for Microsoft Windows. This license is valid for five workstations and two servers.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

So you think no one can listen in on your VOIP conversations, eh? Well... if you haven't setup Secure Real Time Transport (SRTP), your voice communications can be hacked into by just about anyone! First, let's talk about the intended audience for…
In my office we had 10 Cisco 7940G IP phones that were useless as they were showing PROTOCOL APPLICATION INVALID when started. I searched through Google and worked for a week continuously on those phones, and finally got them working. This is a di…
This Micro Tutorial will teach you how to add a cinematic look to any film or video out there. There are very few simple steps that you will follow to do so. This will be demonstrated using Adobe Premiere Pro CS6.
This video shows how to quickly and easily deploy an email signature for all users in Office 365 and prevent it from being added to replies and forwards. (the resulting signature is applied on the server level in Exchange Online) The email signat…
Suggested Courses

834 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question