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#79496 by thunderbird
Sat Apr 16, 2011 11:09 am
dschmidt_2000:
To help prevent dropped calls:
Try turning off MAC Address Spoofing by changing the MAC Address from Automaic to Use Built-in, by accessing your Ooma Setup pages by using a computer connected to your Ooma device's Home port with a network cable. After restarting your computer, Type in http://172.27.35.1 and the Ooma Setup pages open. (If you have your router connected to the Ooma device's Home port, than your computer, just type in http://172.27.35.1) I believe these settings are on the Internet page. After you have clicked on the Use Built MAC Address in button, click on Update and restart you Ooma device.
#79500 by thunderbird
Sat Apr 16, 2011 11:43 am
dschmidt_2000:
Some more suggestions to try:
Some Internet providers provide bad connections to the Internet to your modem.

Run http://www.speedtest.net/ and record the IP address that you see in the lower left side of the page.

This is to make sure the Internet provider assigned IP address changes each time you reboot your modem. In China I have had to do this procedure up to 20 times to get a good IP address from the Internet provider.
Reboot your Modem.

Note: if your Internet provider issues to you/your account a static IP address, you will see no change in the IP address, but most don't do this anymore.

After running Speedtest, you can see the IP address that is assigned to, you by your Internet provider, at the lower left side of the Speedtest page. Make sure that it changes each time you reboot your modem.

Run http://speedtest.phonepower.com/ and make sure your:
Jitter readings are less than 5ms.
You should have no packet loss (three places).
The download and upload quality of service each is about 80 percent or more.
Your Maximum TCP delay should be 100ms or less.

If your reading doesn’t fall into the values above, do the procedure above again until they do.

Another thing to try:
Try testing with just using one corded phone while you are receiving a call.

Something More:
If your Ooma device setup is Modem-Router-Ooma, try reserving a static IP address in your router for the Ooma device, than place the Ooma device's static IP address into the router's DMZ.

One Last Thing:
If you are using Wi-Fi along with a cordless phone system, sometimes the Wi-Fi will conflict with the Cordless phone, but not all of the time. The fix for that is to go into your router's Wi-Fi menu and change from Automatic frequency selection, to one of the fixed frequancies. You may have to change to another fixed Wi-Fi frequency if the first one don't help.
#79504 by dschmidt_2000
Sat Apr 16, 2011 12:47 pm
BEFORE GETTING A NEW IP ADDRESS
VoIP test statistics
--------------------
Jitter: you --> server: 0.1 ms
Jitter: server --> you: 3.5 ms
Packet loss: you --> server: 0.0 %
Packet loss: server --> you: 0.0 %
Packet discards: 0.0 %
Packets out of order: 0.0 %
Estimated MOS score: 4.0

Speed test statistics
---------------------
Download speed: 2541096 bps
Upload speed: 432848 bps
Download quality of service: 99 %
Upload quality of service: 54 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 151 ms
Average download pause: 4 ms
Minimum round trip time to server: 21 ms
Average round trip time to server: 21 ms
Estimated download bandwidth: 2560000bps
Route concurrency: 1.0074393
Download TCP forced idle: 0 %
Maximum route speed: 24965712bps



AFTER GETTING A NEW IP ADDRESS


VoIP test statistics
--------------------
Jitter: you --> server: 0.1 ms
Jitter: server --> you: 3.7 ms
Packet loss: you --> server: 0.0 %
Packet loss: server --> you: 0.0 %
Packet discards: 0.0 %
Packets out of order: 0.0 %
Estimated MOS score: 4.0

Speed test statistics
---------------------
Download speed: 2479368 bps
Upload speed: 435176 bps
Download quality of service: 86 %
Upload quality of service: 99 %
Download test type: socket
Upload test type: socket
Maximum TCP delay: 151 ms
Average download pause: 4 ms
Minimum round trip time to server: 21 ms
Average round trip time to server: 22 ms
Estimated download bandwidth: 2560000bps
Route concurrency: 1.0325212
Download TCP forced idle: 0 %
Maximum route speed: 24965712bps
#79506 by lbmofo
Sat Apr 16, 2011 1:28 pm
thunderbird wrote:Another thing to try:
Try testing with just using one corded phone while you are receiving a call.

Have you tried this to rule out house wiring or cordless phones?
#79510 by dschmidt_2000
Sat Apr 16, 2011 2:19 pm
lbmofo wrote:
thunderbird wrote:Another thing to try:
Try testing with just using one corded phone while you are receiving a call.

Have you tried this to rule out house wiring or cordless phones?


No as the problem is inconsistent. No reason to think it's wiring or cordless phone issue as it's been working fine and nothing wiring or phone end has changed. Seems eerily similar to the "rings once then goes to VM" problem in the past (which was an Ooma server end problem).
#79513 by thunderbird
Sat Apr 16, 2011 2:47 pm
dschmidt_2000 wrote:
lbmofo wrote:
thunderbird wrote:Another thing to try:
Try testing with just using one corded phone while you are receiving a call.

Have you tried this to rule out house wiring or cordless phones?


No as the problem is inconsistent. No reason to think it's wiring or cordless phone issue as it's been working fine and nothing wiring or phone end has changed. Seems eerily similar to the "rings once then goes to VM" problem in the past (which was an Ooma server end problem).

I would check both of the tests, testing with a corded phone only connected to the Ooma device's phone port, and changing the Wi-Fi frequency, since this problem does occur with other users.
#79560 by dschmidt_2000
Sat Apr 16, 2011 9:50 pm
thunderbird wrote:I would check both of the tests, testing with a corded phone only connected to the Ooma device's phone port, and changing the Wi-Fi frequency, since this problem does occur with other users.


Phones are DECT 6.0 which does not overlap/use the 2.4Ghz wifi frequencies.

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