Solved

Which VoIP codec to use on a slow connection

Posted on 2010-11-10
9
949 Views
Last Modified: 2012-05-10
Hi Expert,
  What codec would you recommend I use for a ADSL connection that has a fair amount of latency (approx. 200 ping to SIP server).

So far I have been having most success with gsm although I did experiment with g729 for a long time but was told this would only be good if I had less latency?

Thanks,
 Martin
0
Comment
Question by:martinprint
  • 4
  • 3
  • 2
9 Comments
 
LVL 15

Expert Comment

by:getzjd
Comment Utility
0
 
LVL 15

Expert Comment

by:getzjd
Comment Utility
Oops... the second link was supposed to be this one http://voip.about.com/od/voipbasics/a/voipcodecs.htm
0
 
LVL 15

Expert Comment

by:getzjd
Comment Utility
What type of phone system are you using it on?  That makes a difference too
0
 

Author Comment

by:martinprint
Comment Utility
Phones are Snom / Cisco but we are now experimenting and having luck with much cheaper chinese models.

g729 has too much delay for us. We find ourselves talking at the time as the client a lot of the time. This does not really happen with gsm.

Does my question make sense?
0
Enabling OSINT in Activity Based Intelligence

Activity based intelligence (ABI) requires access to all available sources of data. Recorded Future allows analysts to observe structured data on the open, deep, and dark web.

 
LVL 6

Accepted Solution

by:
mark_06 earned 500 total points
Comment Utility
For low bandwidth g729 is the best option. However if your having latency issues then I think you will have to settle with gsm. Otherwise give g711u a go, although its not low bandwidth.
0
 

Author Comment

by:martinprint
Comment Utility
How about speex or iLBC would they be better for low bandwidth? (compared to gsm)
0
 
LVL 6

Expert Comment

by:mark_06
Comment Utility
You can give it a go. It's just trial and error i'm afraid as to what will best suit you.
0
 

Author Comment

by:martinprint
Comment Utility
Is there a service I can use to help me test? Or do I have to "phone a friend" ?
0
 
LVL 15

Expert Comment

by:getzjd
Comment Utility
You have to phone a friend.  Phone home... Phone home.  lol
0

Featured Post

How your wiki can always stay up-to-date

Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
- Increase transparency
- Onboard new hires faster
- Access from mobile/offline

Join & Write a Comment

Almost all Internet protocol telephones have built-in switches at the back that allow you to connect your personal computer to one port and use the other port to connect your phone to to a Cisco switch.   Why we need to connect the PC to the pho…
If your business is like most, chances are you still need to maintain a fax infrastructure for your staff. It’s hard to believe that a communication technology that was thriving in the mid-80s could still be an essential part of your team’s modern I…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, Just open a new email message.  In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
Internet Business Fax to Email Made Easy - With eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, fr…

743 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

Need Help in Real-Time?

Connect with top rated Experts

8 Experts available now in Live!

Get 1:1 Help Now