$xml = "<MobileConnect><Port>4433</Port></MobileConnect>"
$sourceXml=New-Object System.Xml.XmlDocument
$sourceXml.LoadXml($xml)
Add-VpnConnection -Name "Oman Network" -ServerAddress https://remote.oman.ie:4433 -PluginApplicationID SonicWall.MobileConnect_cw5n1h2txyewy -CustomConfiguration $sourceXml  -RememberCredential $true