Add Yealink t38g provisioning template and then add line 2 to the the t22.

resources/templates/provision/yealink/t22/{v_mac}.cfg

@@ -380,32 +380,32 @@ account.1.dnd.on_code =
 account.1.dnd.off_code =
 
 #######################################################################################
-##                        Account2 Settings                                          ##                                       
+##                        Account2 Settings                                          ##
 #######################################################################################
 
 #Enable or disable the account2, 0-Disabled (default), 1-Enabled;
-account.2.enable = 
+account.2.enable = 1
 
 #Configure the label displayed on the LCD screen for account2.
-account.2.label = 
+account.2.label = {v_line2_displayname}
 
 #Enable or disable to use the alert info URL; 0-Enabled (default), 1-Disabled;
 account.2.alert_info_url_enable =
 
 #Configure the display name of account2.
-account.2.display_name =
+account.2.display_name = {v_line2_displayname}
 
 #Configure the username and password for register authentication.
-account.2.auth_name = 
-account.2.password = 
+account.2.auth_name = {v_line2_user_id}
+account.2.password = {v_line2_user_password}
 
 #Configure the register user name.
-account.2.user_name =  
+account.2.user_name = {v_line2_user_id}
 
 #Configure the SIP server address.
-account.2.sip_server_host = 
+account.2.sip_server_host = {domain_name}
 #Specify the port for the SIP server. The default value is 5060.
-account.2.sip_server_port = 
+account.2.sip_server_port = 5060
 
 #Enable or disable to use the outbound proxy server; 0-Disabled (default), 1-Enabled; 
 account.2.outbound_proxy_enable = 
@@ -434,7 +434,7 @@ account.2.backup_outbound_host =
 account.2.backup_outbound_port = 
 
 #Configure the voice mail number of account2.
-voice_mail.number.2 = 
+voice_mail.number.2 = *97
 
 #Configure the proxy server to account2.
 account.2.proxy_require =