Solved

Need Best QoS for VPN VoIP Solution in Router / Firewall Combination

Posted on 2004-09-08
6
1,803 Views
Last Modified: 2008-01-09
After speaking to many people and trying some different solutions, there seems to be differing opinion on the best answer to my question.

I am looking for the best router / firewall combination which provides a reliable, secure site-to-site VPN over DSL and supports QoS features for the VPN traffic carrying VoIP packets.

Specific Situation:

4 Sites - Max 8 Users at each site
SDSL 512k Up / 512k Down at each site (except main site - ADSL 768k Up / 1536k Down)
Altigen VoIP Phone System (Main server at main site, rest of sites just have phone sets - no gateways)
VoIP Codec - G723.1 (6.4k bandwidth)
Mostly VoIP, Windows domain traffic and file traffic over WAN
Currently am using Cisco 837's for Site-To-Site VPN for WAN

I would appreciate any significant suggestions on this subject as I am racking my brain to provide VoIP phone service which doesn't have delays or voice quality issues.  Please help!

0
Comment
Question by:zhoffman
6 Comments
 
LVL 2

Assisted Solution

by:apostle12
apostle12 earned 250 total points
ID: 12029127
Get a Netscreen Firewall. They are relatively inexpensive and you have total control over the traffic shaping. I used it when I had video conferencing going on, it had priority and everything else took a back seat, VoIP, internet browsing etc. When the video conferencing was done everything went back to normal. You can pick the 5 user model up on ebay for about $200.00
0
 
LVL 2

Expert Comment

by:apostle12
ID: 12029135
I also used the Altigen System.
0
 
LVL 2

Accepted Solution

by:
tabush earned 250 total points
ID: 12038318
If routing traffic over the internet you can't get any guaranteed QoS as the internet is not controlled by one single entity. But for best results, you should:
1. Get all SDSL lines (more reliable and generally lower latency than ADSL)
2. Get all DSL lines from the same carrier (so you will have minimal hops from one office to the next)
3. Set up QoS on the Firewalls which will help manage traffic.
0
Visualize your virtual and backup environments

Create well-organized and polished visualizations of your virtual and backup environments when planning VMware vSphere, Microsoft Hyper-V or Veeam deployments. It helps you to gain better visibility and valuable business insights.

 

Author Comment

by:zhoffman
ID: 12038733
Are there any specific firewalls you would recommend for providing QoS?  I haven't seen many which provide this service.  It appears that the QoS function is usually on the router side.

Please let me know your suggestions.  Thanks.
0
 
LVL 2

Expert Comment

by:apostle12
ID: 12130011
Netscreen. QoS and traffic shaping.
0
 

Expert Comment

by:topherguy
ID: 12363579
I second the Netscreen solution, a proven VOIP performer in all our VOIP installations.  Sonicwall is great as well, not sure that the SOnic has traffic shaping.  That's whats great about the netscreen.  A TFP session won't take out a voice call ojn VOIP.
0

Featured Post

MIM Survival Guide for Service Desk Managers

Major incidents can send mastered service desk processes into disorder. Systems and tools produce the data needed to resolve these incidents, but your challenge is getting that information to the right people fast. Check out the Survival Guide and begin bringing order to chaos.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
SIP Trunk provider 20 138
exchange UM and Lync quastiones 6 83
Porting numbers 3 71
VLAN CONFIGURATION 2 56
Although VoiceOver IP has been around for a while, internet connections have only recently become fast enough to provide good call quality. Now, VoIP has become a real option for businesses looking at ways to improve their business model. In this ar…
I recently purchased a Bluetooth headset called the Music Jogger (model BSH10). The control buttons on it look like this: One of my goals is to use it as the microphone and speakers for Skype calls. In that respect, it works well. However, I …
Email security requires an ever evolving service that stays up to date with counter-evolving threats. The Email Laundry perform Research and Development to ensure their email security service evolves faster than cyber criminals. We apply our Threat…
Attackers love to prey on accounts that have privileges. Reducing privileged accounts and protecting privileged accounts therefore is paramount. Users, groups, and service accounts need to be protected to help protect the entire Active Directory …

735 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