970| Voice and Video AOS-W 6.5.3.x| User Guide
In the CLI
The following commands configure the Wi-Fi Calling ALG using the CLI.
(host)(config) #voice wificalling
(host) (WiFiCalling Configuration) #enable
(host) (WiFiCalling Configuration) #dns-pattern <dns-pattern> service-provider <service-
provider>
The following commands display the Wi-Fi Calling ALG configuration using the CLI.
(host) #show voice wificalling
WiFiCalling Configuration
-------------------------
Parameter Value
--------- -----
WiFiCalling Support Enabled
dns pattern att.net ATT
Wi-Fi Calling Troubleshooting
The following section describes the step-by-step procedure to troubleshoot Wi-Fi Calling ALG.
1. Ensure that the global prerequisites to enable Wi-Fi Calling is configured. For more information, see Wi-Fi
Calling Configuration on page 969.
2. Connect the Wi-Fi Calling capable handset to the SSID.
3. Once the handset establishes a persistent IPsec tunnel with ePDG, it displays the Wi-Fi Calling icon.
4. Execute the show ucc dns-ip-learning command to verify if the ePDG IP address is learned.
(host) #show ucc dns-ip-learning
DNS IP Learning:
----------------
IP Address Service Provider
---------- ----------------
208.54.85.108 T-Mobile
208.54.73.77 T-Mobile
208.54.70.110 T-Mobile
208.54.77.253 T-Mobile
208.54.75.2 T-Mobile
208.54.85.64 T-Mobile
208.54.73.76 T-Mobile
208.54.83.96 T-Mobile
208.54.85.111 T-Mobile
Total Entries:9
5. If the ePDG IP address is not learned, identify the FQDN of ePDG and add the DNS pattern of the carrier.
FQDN may not be matching with any of the default, built-in DNS patterns.
6. Place a few calls and execute the show ucc client-info and show ucc call-info cdrs commands or access
the Dashboard > UCC page on the WebUI to view Wi-Fi call statistics and prioritization.
(host) #show ucc client-info
Client Status:
--------------
Client IP Client MAC Client Name ALG Server(IP) Registration State
--------- ---------- ----------- --- ---------- ------------------
10.15.17.208 fc:c2:de:6c:01:9c Client WiFi-Calling T-Mobile REGISTERED
10.15.17.206 d8:bb:2c:51:16:b2 Client WiFi-Calling T-Mobile REGISTERED
Call Status AP Name Flags Device Type
----------- ------- ----- -----------
In-Call 4-105-2 Android
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