×
INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

NEC Dterm Series i IP adapter
2

NEC Dterm Series i IP adapter

NEC Dterm Series i IP adapter

(OP)
We have 32 NEC Dterm series i phones with an added IP adapter on the bottom.  Our users connect to our gateways through consumer DSL or Cable connections.  The users are complaining of a lot of dropped calls, sound quality, etc.  Does anyone know where to get firmware upgrades for this system, or a good place to read about the system?  Thanks!

RE: NEC Dterm Series i IP adapter

You will have to contact a local NEC dealer

RE: NEC Dterm Series i IP adapter

It might not be as simple as a firmware upgrade for the IP adaptor. Have you checked the DSL/Cable service? Do you have QoS on the service? Is the service shared with data? Do you have enough bandwith? What CODECS/compression are you using?

You will need to contact your local NEC dealer and get some expert advice and assistance.


Jesse
PABX Sales and Service

RE: NEC Dterm Series i IP adapter

2
With most any ISP, QoS will not be something you will be able to get from them. I've yet to find one youo will quaranty QoS. I have a NEC Soft Phone (SP20) as an application running on my PC. I am connected via Cable Modem and have VPN set up betweem my PC and my home office (te get through the FireWall). But have no method of securing QoS. DSL and Cable offer plenty of Bandwidth but QoS is something you won't get. Be that the case, you are subjuct to voice quality issues. But overall (95%) of the time, my VoIP quality is fantastic.

A good test is to place the IP phone(s) at the main location so they're not going through the public internet. If the voice quality is OK, upgrading the firmware on the IP adapters will not resolve your problem.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login


Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close