DVSwitch + AllStarLink + Echolink On a Raspberry Pi Zero 2W

Step  1
Touch on the DVSwitch Mobile app on your android device to run it.

Step  2
Once open, touch on Accounts menu.

Step  3
Select IAX2 EMPTY the second one as the first one already been configured for AllStarLink and Echolink.
This second one will be confgiured for DVSwitch server.

Step  4
Touch on the Protocol field and change protocol from IAX2 to USRP 

Step  5
In the Hostname type your node (Pi Zero 2W) IP address

Step  6
Change the Port and TX Port from 34001 and 32001 to 50100 as we set this value during configuring DVSwitch server.
Please refer to Section 3 Step 20 for details.

Step  7
In the Password field please type your BrandMeister portal login password. Try to keep same password for Selfcare in the BrandMeister portal. 

Step  8
Type your Call Sign in the Callsign field

Step  9
Type your DMR ID in the DMR ID field and leave Transmit Level and Receive Level as default then touch Save button.

Step  10
This will take you back to the previous Accounts menu

Step  11
Within few seconds you can see there will be a message in the middle bottom of the screen saying USRP:REG:OK

Step  12
Touch on back button and you will see in the Dialer menu it is already typed *DMR
Just touch on Send button.

Step  13
Within few seconds you will see in the middle bottom of the screen it says Setting mode to DMR

Step  14
Type 91 in the dialer field and touch Send button. Talk group 91 is the most busy channel at the moment.
You can type any Talk group you like but for testing 91 is the best Talk group as always some one having QSO

Step  15
In the lower side of the screen you will see DMR TG: 91 and the Talk group name. That means your node is connected to BrandMeister Talk group 91 and you are ready to transmit or receive.

Step  16
You can touch on Status menu and confirm Registration showing Registered and Connection is USRP along with some TX and RX data. You will also see the Call Sign of currently connected station to this Talk group. 

Step  17
Touch on back button to go back to Dialer menu. Touch and hold PTT button to transmit. The PTT button will become Red during the transmission. Lift your finger from PTT button when you want end the transmission.

Step  18
After having some QSO you can touch the Status menu and you will see a list of Call Sign who already completed their QSO in this Talk group. You can node down the Call Sign for loggin purposes.

Step  19
If you want to disconnect from the current Talk group you connected, please type 4000 in the dialer field and press Send button. This will disconnect your node from any connected Talk group and it will say in audio "Not Linked".
Please note you can execute this command only when the Talk group is free ( no QSO happening ) 

Step  20
You need to touch back button twice to exit / close this application.

Additional Information
You can run AllStarLink and DVSwitch application running side by side. You need to go to Accounts menu and select the correct profile and it will switch automatically.
Please remember  your mobile phone needs to be connected to the same WiFi network where the node (Pi Zero 2W) is connected.
You can access the node (Pi Zero 2W) from 3G or 4G network outside of your home. I will discuss that in a separate link.