RB750Gr3 can not work with VoIP app TextMeUp

RouterOS General
1

Recently, I changed my home router from Netgear to Mikrotik RB750Gr3 and found one VoIP android app – TextMeUp cannot work, the app seems cannot register service to server.
So, tried couple of steps,

  1. Reset the router and follow QuickSet to config as a simple PPPoE client. No luck.
  2. Enable/disable SIP in Service Ports. No luck.
  3. DMZ to the phone in which the app is installed. No luck.
  4. Upgrade to latest release. No luck.
  5. Talk to TextMeUp and get feedback “To make sure TextMe Up works on your WiFi: dns must be opened, https outbound 443, no VPN preferred, udp allowed ( 1024-65365 )”

But, as long as I changed back to Netgear and set the PPPoE, the app can work well without any other additional settings.

Could anybody help me through this issue?
Thanks a lot.

2

I have two ideas from what you wrote :

  1. Such applications is dangerous.
  2. Netgear doesn’t protect your network.

Hard to guess how the mikrotik router is set in your case, but if you don’t mind the security risks, you can try to enable upnp. But I would rather stay on the secure side… Your choice.