TP-Link AC1750

[ChuckR]

I have been chasing a phone issue since last year. See MagicJack. I received 2 calls from our sons and with the computer off the connection was quite good. I wonder if the router could require setting changes since with all the chasing and changes I have made so far it did not clear up.
I did make a recommended change to the router settings.

Navigate to your routers web interface.
The default username is admin and the default password is admin. (If you have not changed it)
On the left, click on Advanced Setup and then click on NAT and then click on ALG.
Uncheck the box by SIP Enabled. (Some TP firmware shows this as SIP Transformations which is the same thing).
Click Save/Apply.

 

[xrobwx71]

I have read, regarding VOIP, SIP ALG should be turned off.

So, what was the outcome of your changes?

SIP ALG and why it should be disabled on most routers | VoiceHost - UK VoIP Provider.

 

[ChuckR]

Also under Basic Security

There are other choices in the Application Layer Gateway. FTP, TFTP, H323, RTSP. These are still enabled.
Additionally there are other choices under Basic Security.
Firewall - SPI Firewall
VPN - PPTP, L2TP and IPSec
These are all Enabled.

 

[ChuckR]

SIP ALG was turned off a couple of months ago.

 

[xrobwx71]

I assume that you are still experiencing negative issues. If this is the case, try turning off anything regarding SPI. After you make these changes,

let us know if you are still experiencing issues, please.

Thanks!

 

[ChuckR]

I have turned off what I referred to. What else are you referring to?

 

[xrobwx71]

I have turned off what I referred to. What else are you referring to?

Nothing, I was only indicating what you posted.

Are you still having problems after turning it all off?

 

[ChuckR]

Yes, that is why the post. It is very strange. I even get calls where there is no answer when I respond. This happened
when the caller was a relative.

 

[xrobwx71]

Yes, that is why the post. It is very strange. I even get calls where there is no answer when I respond. This happened
when the caller was a relative.

Heck, my Verizon service does this from time to time.

Does it work after one of the parties calls back?

 

[ChuckR]

They don't call back. Usually they revert to E-mail. Your comment is interesting as our son in Virginia uses Verizon. The
one in California uses AT&T.

 

[xrobwx71]

Your comment is interesting as our son in Virginia uses Verizon.

Yes, it happens all the time. I'll call my Mom and I can hear her but she can't hear me or neither can hear anything. A hangup and callback usually fixes it.

We've had more problems with Verizon since Hurricane Michael. Even though it's been over 2 years, I don't think they've mitigated all the issues.