Doorphone issue

[milad]

Hi all;

I have problem with the c4 intercom. In my installation I have EA-3 as the controller, 7inches portable touch screen and DSC-ENT door station. When we push the bell button the touch screen ringing (sometimes with delay). After I touch answer button on touch screen it takes 7 seconds to let my sound go through door station. Also sometimes the video comes after 5 seconds.

I do below solutions but no improvement:

1. I connected touchscreen with Lan cable directly to the router.

2. I disconnected every other devices from the router like CCTV system

3. I updated the controller, touchscreen and door station to latest version.

4. I deleted my project and add just the controller, touchscreen and door station.

I see the same issue that posted with erricson in 2013 but no one answer!

[knowitall]

Sounds like a networking problem. 

What kind of router switch do you have? Gigabit network/AP’s?

[milad]

I tested modem-router tplink VR600 and Linksys AC1600. Both of them have gigabit lan.

[mtorr060]

Don't those devices use a sip like phone call? Like when you dial the extension at my office to the next office over. 

[msgreenf]

Don't those devices use a sip like phone call? Like when you dial the extension at my office to the next office over. 

Yes

Sent from my Pixel XL using Tapatalk

[mtorr060]

Usually there's a quality of service setting in your router that can prioritize that type of call I believe.

[milad]

6 hours ago, mtorr060 said:

Usually there's a quality of service setting in your router that can prioritize that type of call I believe.

There is the pdf file in knowledge base for setting up the router. I did it step by step on my router. I disabled the QOS service by the way I will be thankful if you tell me your exact solution.