Important stuff in Info.plist:

- used for registering for tel: and sip: URLs

	<key>CFBundleURLTypes</key>
	<array>
		<dict>
			<key>CFBundleURLName</key>
			<string>SIP URL</string>
			<key>CFBundleURLSchemes</key>
			<array>
				<string>sip</string>
			</array>
			<key>LSIsAppleDefaultForScheme</key>
			<string>1</string>
		</dict>
    <dict>
			<key>CFBundleURLName</key>
			<string>TEL URL</string>
			<key>CFBundleURLSchemes</key>
			<array>
				<string>tel</string>
			</array>
			<key>LSIsAppleDefaultForScheme</key>
			<string>1</string>
		</dict>
	</array>

- used for hiding from Dock

  <key>LSBackgroundOnly</key>
  <true />