Home > IT Answers > VoIP > Is it any good to have 1 QoS router on WAN wi...
Help

Question

  Asked: Apr 3 2008   3:33 PM GMT
  Asked by: EB

Is it any good to have 1 QoS router on WAN with VOIP


VoIP, QoS, Routers, WAN, VoIP QoS

I am thinking of implementing VOIP on a network that links 2 sites via DSL and Linksys BEFVP41 routers which do not support QoS.
I am wondering whether it would make any sense changing one of these routers with a RVS4000 to ensure good voice quality.
I would like to avoid purchasing 2 new routers if it's possible to purchase onle 1.
Thanks.

Subscribe to Alerts! Get questions and answers delivered to your Inbox.


E-mail me updates on this question



   SUBSCRIBE

hidden modal window
Help

Answer Wiki (Improve, edit or add to this answer)

IMPROVE THIS ANSWER
View History
 RATE THIS ANSWER
0
Click to Vote:
  •   0
  •  0
Last Answered: Apr 4 2008  10:45 PM GMT  by Dwiebesick




There is much more to consider then just QoS. You need to consider your internet speed the phone system you will use, how will you prioritize the voice or data. Having a router at one end with QoS does nothing for the other end. Also, that does not mean your ISP will ensure QoS. If this is for a business, then you should consider talking with a local expert in VOIP.
  • AddThis Social Bookmark Button

Browse more Questions and Answers on VoIP and Networking.

Looking for relevant VoIP Whitepapers? Visit the SearchUnifiedCommunications.com Research Library.


RSS - Discussions Help

Discuss This Answer


You must be logged-in to discuss a question. Log-in/Register

Tbitner  |   Apr 4 2008  1:26PM GMT

Are you trying to run VoIP between two networks that are separated by a IPSec VPN? An IPSec VPN is subject to latency/jitter/loss since it traverses through the public Internet. You won’t be able to maintain QoS priority on this traffic even with QoS enabled endpoint routers. You would need a dedicated line connection between the offices such as MPLS, then your QoS headers will be honored and maintained.

 

EB  |   Apr 5 2008  2:00AM GMT

I am thinking of running VoIP between 2 networks that are separated by an IPSec VPN over a 256 kbps public Internet connection.

I have a Samaung OS7200 at a small business which I’m hoping to upgrade for that purpose. There will be 2 IP phones at the remote end. I don’t know that the ISP ensures QoS on that particulay connection, however, they offer VoIP (vonage type) service to their customers.

But would I definately need a router with QoS at both ends?

 

Tbitner  |   Apr 7 2008  7:42PM GMT

VoIP will work for both networks if they are independent (such as vonage or from ISP), but if you want to tie them together, it adds a whole other level of infrastucture (dedicated connection, VoIP gateway, Call Manager…etc) which means $$$.

VoIP over the public Internet for two networks isn’t going to work. Public Internet routers don’t honor QoS tags, plus your packets will be encrypted anyway.

If you go with VoIP provided by the ISP at both locations, they might provide equipment so you wouldn’t need to upgrade your router, but It really depends on how they implement it. Talk to the ISP and see what they recommend for their solution.

Regards