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m_hamja
m_hamja
New Member
November 23, 2023
Question

Carrier Wifi Calling not working with FortiGate and Asus

  • November 23, 2023
  • 2 replies
  • 4220 views

Hi Experts,

I'm using FortiGate 80E with firmware version 7.4.1 for my network. I have an Asus RT-AC88U as access point for my wireless access. 

My carrier Wifi Calling not getting enabled on our mobiles. Is there any specific port or services that i need to enable on Lan to Wan policy? Kindly guide me. Thank you.

2 replies

abarushka
Staff
abarushka
Staff
November 23, 2023

Hello,

 

You may consider to run debug flow and try to reproduce the issue:

 

diagnose debug flow filter addr <phone IP address>
diagnose debug flow show function-name enable
diagnose debug flow trace start 100
diagnose debug enable

 

and check failed session setups.

Kevex
Kevex
Explorer
August 16, 2024

When Wi-Fi calling is enabled on a smartphone, an IPSec tunnel is established between the phone and the mobile network through which calls are routed.

Here's what AT&T says, but it's similar for other carriers.

Allow Internet Protocol Security (IPSec) and imap

Ports 500, 4500, and 143 (shown in the table) are used to communicate to the AT&T network and must be open.

Data ports

Port

TCP or UDP

Service or protocol name

RFC

Service name

500

UDP

Wi-Fi Calling

5996

IKEv2

4500

UDP

Wi-Fi Calling

5996

IKEv2

143

TCP

Internet Message Access Protocol (IMAP)

3501

imap


Google Wi-Fi WiFi Calling with your carrier name, like Verizon, to get their specific settings.

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