How to improve WISP Ooma call quality on a Linksys WRT54G?

This forum includes tips for maintaining the best audio quality possible with the Ooma System. If your Ooma system is having issues with dropped calls, static audio or echo, look here for assistance.
rocksockdoc
Posts: 70
Joined: Wed Jun 20, 2012 1:05 pm

How to improve WISP Ooma call quality on a Linksys WRT54G?

Post by rocksockdoc » Thu Jun 21, 2012 6:00 am

It seems most (almost all?) users on this forum have a 'modem' but I'm looking for how to improve call quality using wireless ISP (WISP) which is line-of-sight WiFi reception to my rooftop antenna & radio transceiver.

So I'm not sure if this tutorial helps (since I have no modem):
- Optimal Setup for Modem -> Router -> Ooma

But, I did lower my QoS setting from 384 Kbps to 0 as is often suggested.
qos.png
qos.png (50.87 KiB) Viewed 8804 times
My setup is as follows (where ==> indicates a wired connection & --> indicates a wireless connection):
Internet ==> WISP AP --> My rooftop antenna & radio ==> Linksys WRT54G router & radio --> Ooma Telo ==> Telephone
Note: There is no modem because this is line-of-sight WiFi wireless ISP ... sort of like at a hotel or at Starbucks but expressly designed for wireless ISP to customers that have no access to cable or DSL and for whom satellite and/or cellular is too slow.

I just tested my wireless ISP (WISP) VOIP call quality at http://www.phonepower.com/speedtest as just OK:
- Download = 1.81 Mbps
- Upload = 483 Kbps
- Jitter = 1.1 ms
- Packet loss = 1.0 %
- MOS score = 1.0
phonepower.png
phonepower.png (31.4 KiB) Viewed 8815 times
My problem is that the voice quality is barely ok. The problem is the other caller drops out for a second or two (various callers) and I drop out (they say) for a second or so intermittently.

In addition, my kids 'sometimes' use the bandwidth watching videos and playing video games.

Given my MOS score:
5 - Perfect. Like face-to-face conversation or radio reception.
4 - Fair. Imperfections can be perceived, but sound still clear. This is (supposedly) the range for cell phones.
3 - Annoying.
2 - Very annoying. Nearly impossible to communicate.
1 - Impossible to communicate
Q: What advice do you have when there is no modem for how I can improve my Ooma voice quality on WiFi WISP?
Last edited by rocksockdoc on Mon Jul 16, 2012 5:31 pm, edited 6 times in total.

thunderbird
Posts: 6388
Joined: Mon Nov 08, 2010 4:41 pm

Re: How to improve WISP Ooma call quality with kids in house?

Post by thunderbird » Thu Jun 21, 2012 6:21 am

rocksockdoc wrote:I just tested my wireless ISP (WISP) VOIP call quality at http://www.phonepower.com/speedtest as just OK:
- Download = 1.81 Mbps
- Upload = 483 Kbps
- Jitter = 1.1 ms
- Packet loss = 1.0 %
- MOS score = 1.0
phonepower.png
My setup is as follows (where ==> indicates a wired connection & --> indicates a wireless connection):
Internet ==> WISP AP --> My rooftop antenna & radio ==> Linksys WRT54G router & radio --> Ooma Telo ==> Telephone
Note: There is no modem because this is line-of-sight WiFi wireless ISP.

My problem is that the voice quality is barely ok. The problem is the other caller drops out for a second or two (various callers) and I drop out (they say) for a second or so intermittently.

In addition, my kids 'sometimes' use the bandwidth watching videos and playing video games.

Q: What advice do you have for how I can improve my Ooma voice quality?
MOS score = 1.0 is normally 4 or more.

You need to click on the advanced tab and post more of the given values.

rocksockdoc
Posts: 70
Joined: Wed Jun 20, 2012 1:05 pm

Re: How to improve WISP Ooma call quality with kids in house?

Post by rocksockdoc » Thu Jun 21, 2012 6:26 am

thunderbird wrote:You need to click on the advanced tab and post more of the given values.
Ooops. Sorry about that. Here are the combined results from a subsequent run after clicking on the advanced tab:
final.png
final.png (61.88 KiB) Viewed 8806 times

User avatar
lbmofo
Posts: 9337
Joined: Sun Mar 14, 2010 7:37 pm
Location: Greater Seattle
Contact:

Re: How to improve WISP Ooma call quality with kids in house?

Post by lbmofo » Thu Jun 21, 2012 8:52 am

The packet loss and packet discards are ugly but since you have no alternative to ISP (router probably not the culprit), I'd suggest just set router QoS to give your Ooma wifi adapter (based on MAC or based on IP via DHCP IP reservation; I think your WRT54G does QoS based on MAC) the highest priority. If your router doesn't have QoS, then get a later model Linksys.
Customer Since: 3/13/10
Hardware: Telo & Hub
Service: Premier 12/06/10
Verizon Port: 3/15/10 - 4/02/10
Internet: 100 Mbps/10 Mbps
Setup: SB6141/R6700/Ooma
MainStreetSHARES Ebates: get Ca$h Back when you shop online!!

Image

rocksockdoc
Posts: 70
Joined: Wed Jun 20, 2012 1:05 pm

Re: How to improve WISP Ooma call quality with kids in house?

Post by rocksockdoc » Thu Jun 21, 2012 2:54 pm

lbmofo wrote:The packet loss and packet discards are ugly but ... you have no alternative to WISP
Yup. The only alternative I have is to pay for a higher WISP speed (as they throttle us down from 4Mbps symmetric depending on the service we purchase from them).
lbmofo wrote:set router QoS to give your Ooma wifi adapter (based on MAC or based on IP via DHCP IP reservation
Hmmm... interesting. I'm assuming the third colum is for the Ooma WiFi USB adapter?
wireless_port.png
wireless_port.png (67.31 KiB) Viewed 8772 times
lbmofo wrote:I think your WRT54G does QoS based on MAC) the highest priority
Hmmm... Googling I find the WRT54G 'does' have a new QsS tab according to Cisco documentation:
- Setting up Quality of Service (QoS) on the WRT54G
cisco wrote:Quality of Service (QoS) functionality with the WRT54G was added with firmware version 2.03.4. You can update the WRT54G’s firmware to have this version or later if you can’t see the QoS sub-tab. For instructions, click here.
That article implies I need later firmware than what I am using. That's odd because I 'thought" I had the latest firmware - yet -the latest firmware version I can find for my V5 router is 1.02.8 which must be lower than 2.03.4 Yet, I do have a QoS tab located here:
gaming.png
gaming.png (187.34 KiB) Viewed 8772 times
Notice, you are correct that this QoS setting in the latest WRT54G firmeware needs the MAC address - but it also takes other values:
So, it looks like I have some reading to do:
Implenting QoS for VOIP in a Linksys router

Interestingly, I might use this method to slow down the kid's computers. They should be doing school work anyway. :)
-
Attachments
linksys_qos.pdf
(315.79 KiB) Downloaded 303 times
Last edited by rocksockdoc on Thu Jun 21, 2012 3:28 pm, edited 1 time in total.

rocksockdoc
Posts: 70
Joined: Wed Jun 20, 2012 1:05 pm

Re: How to improve WISP Ooma call quality with kids in house?

Post by rocksockdoc » Thu Jun 21, 2012 3:07 pm

Here's a snapshot of how I set the Linksys WRT54G QoS for the MAC address of the Ooma Telo WiFi adapter:
qos_setup.png
qos_setup.png (41.78 KiB) Viewed 8769 times
And, since it seemed like a good idea, I also just now set the priority of the Ooma ports (although I have no idea if this is a good idea or not to set the priority of the port itself):
optimize.png
optimize.png (42.36 KiB) Viewed 8769 times

rocksockdoc
Posts: 70
Joined: Wed Jun 20, 2012 1:05 pm

Does Ooma support WMM?

Post by rocksockdoc » Thu Jun 21, 2012 3:18 pm

I wonder: Does the Ooma WiFi adapter support Wi-Fi MultiMedia (WMM)?
If so, I should probably check that box in the Linksys WRT54G router QoS configuration.
wmm.png
wmm.png (21.47 KiB) Viewed 8768 times

rocksockdoc
Posts: 70
Joined: Wed Jun 20, 2012 1:05 pm

Re: How to improve WISP Ooma call quality on a Linksys WRT54G?

Post by rocksockdoc » Thu Jun 21, 2012 3:25 pm

Here are the new speedtest results:
final.jpg
final.jpg (109.45 KiB) Viewed 8766 times
BTW ... I'm not sure if I should set the WRT54G QoS to manual (with a number) or automatic???
What do you recommend?
manual.png
manual.png (10.6 KiB) Viewed 8766 times

abqbill
Posts: 39
Joined: Sat May 26, 2012 6:23 pm

Re: How to improve WISP Ooma call quality on a Linksys WRT54G?

Post by abqbill » Thu Jun 21, 2012 4:35 pm

To see your Ooma wireless adapter's MAC (hardware) address, go to the Ooma setup page, click Status, then Ports. The wireless adapter's hardware (MAC) address is in the third column and appears as a series of 6 hex numbers separated by colons (:), like 0A:1B:2C:3D:4E:5F. You can use this address in your router to specify QoS.

The Automatic QoS speed setting in the router should be disabled, and you should configure the Kbps to about 80% of your rated upload speed.

Bill

rocksockdoc
Posts: 70
Joined: Wed Jun 20, 2012 1:05 pm

Re: How to improve WISP Ooma call quality on a Linksys WRT54G?

Post by rocksockdoc » Thu Jun 21, 2012 7:19 pm

abqbill wrote:The wireless adapter's hardware (MAC) address is in the third column
Thanks Bill. The third column MAC address is what I used in the Linksys WRT54Gv5 QoS router configuration.
abqbill wrote:The Automatic QoS speed setting in the router should be disabled, and you should configure the Kbps to about 80% of your rated upload speed.
That's a great metric to know. Since my tested upload speed is about 480 Kbps, that means I should set mine to MANUAL and then to about 380 Kbps.

The good news is that the QoS settings 'seemed' to have instantly made a difference in the quality of the phone conversation. This is good. It's still not as good as I like ... but given the settings above ... it's muuuuch better!

Q: Does anyone know if Ooma supports WMM?

Post Reply