diff --git a/api/etemplate.php b/api/etemplate.php
index f7cf3f05db..5d12ce9ced 100644
--- a/api/etemplate.php
+++ b/api/etemplate.php
@@ -143,7 +143,6 @@ function send_template()
 			if (!empty($matches[3])) $tag = str_replace($matches[3], '', $tag);
 			if ($type !== 'float') $tag .= ' precision="0"';
 			return $tag.'></et2-number>';
-
 		}, $str);
 
 		// fix <buttononly.../> --> <button type="buttononly".../>
@@ -156,16 +155,14 @@ function send_template()
 				(substr($matches[4], -1) === '/' ? substr($matches[4], 0, -1) . '></et2-' . $matches[3] : $matches[4]) . '>';
 		}, $str);
 
-		// handling of partially implemented select and date widget (only readonly or simple select without tags or search attribute or options)
+		// handling of date and partially implemented select widget (no search or tags attribute), incl. removing of type attribute
 		$str = preg_replace_callback('#<(select|date)(-[^ ]+)? ([^>]+)/>#', static function (array $matches)
 		{
 			preg_match_all('/(^| )([a-z0-9_-]+)="([^"]+)"/', $matches[3], $attrs, PREG_PATTERN_ORDER);
 			$attrs = array_combine($attrs[2], $attrs[3]);
 
-			// add et2-prefix for <select-* or <date-* readonly="true"
-			if (isset($attrs['readonly']) && !in_array($attrs['readonly'], ['false', '0']) ||
-				// also add it for <date* and <select* without search or tags attribute
-				$matches[1] === 'date' || $matches[1] === 'select' && !isset($attrs['search']) && !isset($attrs['tags']))
+			// add et2-prefix for <date-* and <select-* without search or tags attribute
+			if ($matches[1] === 'date' || $matches[1] === 'select' && !isset($attrs['search']) && !isset($attrs['tags']))
 			{
 				// type attribute need to go in widget type <select type="select-account" --> <et2-select-account
 				if (empty($matches[2]) && isset($attrs['type']))
@@ -178,6 +175,14 @@ function send_template()
 			return $matches[0];
 		}, $str);
 
+		// add et2- prefix to url widget, as far as it is currently implemented
+		$str = preg_replace_callback('#<url-(email|phone) (.*?)/>#', static function($matches)
+		{
+			if (strpos($matches[2], 'readonly="true"')) return $matches[0];    // leave readonly alone for now
+			return str_replace('<url-'.$matches[1], '<et2-url-'.$matches[1], substr($matches[0], 0, -2)).
+				'></et2-url-'.$matches[1].'>';
+		}, $str);
+
 		$processing = microtime(true);
 
 		if(isset($cache) && (file_exists($cache_dir = dirname($cache)) || mkdir($cache_dir, 0755, true)))
diff --git a/api/js/etemplate/Et2Url/Et2InvokerMixin.ts b/api/js/etemplate/Et2Url/Et2InvokerMixin.ts
new file mode 100644
index 0000000000..22ac203042
--- /dev/null
+++ b/api/js/etemplate/Et2Url/Et2InvokerMixin.ts
@@ -0,0 +1,139 @@
+/**
+ * EGroupware eTemplate2 - InvokerMixing
+ *
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package api
+ * @link https://www.egroupware.org
+ * @author Ralf Becker
+ */
+
+/* eslint-disable import/no-extraneous-dependencies */
+import {dedupeMixin, html, render} from '@lion/core';
+import {Et2InputWidget} from "../Et2InputWidget/Et2InputWidget";
+
+/**
+ * Invoker mixing adds an invoker button to a widget to trigger some action, e.g.:
+ * - searchbox to delete input
+ * - url to open url
+ * - url-email to open mail compose
+ *
+ * Inspired by Lion date-picker.
+ */
+export const Et2InvokerMixin = dedupeMixin((superclass) =>
+{
+	class Et2Invoker extends Et2InputWidget(superclass)
+	{
+		/** @type {any} */
+		static get properties()
+		{
+			return {
+				_invokerLabel: {
+					type: String,
+				},
+				_invokerTitle: {
+					type: String,
+				},
+				_invokerAction: {
+					type: Function,
+				}
+			};
+		}
+
+		get slots()
+		{
+			return {
+				...super.slots,
+				suffix: () =>
+				{
+					const renderParent = document.createElement('div');
+					render(
+						this._invokerTemplate(),
+						renderParent
+					);
+					return /** @type {HTMLElement} */ (renderParent.firstElementChild);
+				},
+			};
+		}
+
+		/**
+		 * @protected
+		 */
+		get _invokerNode()
+		{
+			return /** @type {HTMLElement} */ (this.querySelector(`#${this.__invokerId}`));
+		}
+
+		constructor()
+		{
+			super();
+			/** @private */
+			this.__invokerId = this.__createUniqueIdForA11y();
+			// default for properties
+			this._invokerLabel = '⎆';
+			this._invokerTitle = 'Click to open';
+			this._invokerAction = () => alert('Invoked :)');
+		}
+
+		/** @private */
+		__createUniqueIdForA11y()
+		{
+			return `${this.localName}-${Math.random().toString(36).substr(2, 10)}`;
+		}
+
+		/**
+		 * @param {PropertyKey} name
+		 * @param {?} oldValue
+		 */
+		requestUpdate(name, oldValue)
+		{
+			super.requestUpdate(name, oldValue);
+
+			if (name === 'disabled' || name === 'showsFeedbackFor' || name === 'modelValue')
+			{
+				this._toggleInvokerDisabled();
+			}
+		}
+
+		/**
+		 * Method to check if invoker can be activated: not disabled, empty or invalid
+		 *
+		 * @protected
+		 * */
+		_toggleInvokerDisabled()
+		{
+			if (this._invokerNode)
+			{
+				const invokerNode = /** @type {HTMLElement & {disabled: boolean}} */ (this._invokerNode);
+				invokerNode.disabled = this.disabled || this._isEmpty() || this.hasFeedbackFor.length > 0;
+			}
+		}
+
+		/** @param {import('@lion/core').PropertyValues } changedProperties */
+		firstUpdated(changedProperties)
+		{
+			super.firstUpdated(changedProperties);
+			this._toggleInvokerDisabled();
+		}
+
+		/**
+		 * Subclassers can replace this with their custom extension invoker,
+		 * like `<my-button><calendar-icon></calendar-icon></my-button>`
+		 */
+		// eslint-disable-next-line class-methods-use-this
+		_invokerTemplate()
+		{
+			return html`
+                <button
+                        type="button"
+                        @click="${this._invokerAction}"
+                        id="${this.__invokerId}"
+                        aria-label="${this.egw().lang(this._invokerTitle)}"
+                        title="${this.egw().lang(this._invokerTitle)}"
+                >
+                    ${this._invokerLabel}
+                </button>
+			`;
+		}
+	}
+	return Et2Invoker;
+})
\ No newline at end of file
diff --git a/api/js/etemplate/Et2Url/Et2UrlEmail.ts b/api/js/etemplate/Et2Url/Et2UrlEmail.ts
new file mode 100644
index 0000000000..fdb87f9b4a
--- /dev/null
+++ b/api/js/etemplate/Et2Url/Et2UrlEmail.ts
@@ -0,0 +1,39 @@
+/**
+ * EGroupware eTemplate2 - Email input widget
+ *
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package api
+ * @link https://www.egroupware.org
+ * @author Ralf Becker
+ */
+
+/* eslint-disable import/no-extraneous-dependencies */
+import {Et2InvokerMixin} from "./Et2InvokerMixin";
+import {IsEmail} from "../Validators/IsEmail";
+import {Et2Textbox} from "../Et2Textbox/Et2Textbox";
+
+/**
+ * @customElement et2-url-email
+ */
+export class Et2UrlEmail extends Et2InvokerMixin(Et2Textbox)
+{
+	constructor()
+	{
+		super();
+		this.defaultValidators.push(new IsEmail());
+		this._invokerLabel = '@';
+		this._invokerTitle = 'Compose mail to';
+		this._invokerAction = () => this.__invokerAction();
+	}
+
+	__invokerAction()
+	{
+		if (!this._isEmpty() && !this.hasFeedbackFor.length &&
+			this.egw().user('apps').mail && this.egw().preference('force_mailto','addressbook') != '1' )
+		{
+			egw.open_link('mailto:'+this.value);
+		}
+	}
+}
+// @ts-ignore TypeScript is not recognizing that this is a LitElement
+customElements.define("et2-url-email", Et2UrlEmail);
\ No newline at end of file
diff --git a/api/js/etemplate/Et2Url/Et2UrlPhone.ts b/api/js/etemplate/Et2Url/Et2UrlPhone.ts
new file mode 100644
index 0000000000..b78bff37be
--- /dev/null
+++ b/api/js/etemplate/Et2Url/Et2UrlPhone.ts
@@ -0,0 +1,69 @@
+/**
+ * EGroupware eTemplate2 - Phone input widget
+ *
+ * @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
+ * @package api
+ * @link https://www.egroupware.org
+ * @author Ralf Becker
+ */
+
+/* eslint-disable import/no-extraneous-dependencies */
+import {Et2InvokerMixin} from "./Et2InvokerMixin";
+import {Et2Textbox} from "../Et2Textbox/Et2Textbox";
+
+/**
+ * @customElement et2-url-phone
+ */
+export class Et2UrlPhone extends Et2InvokerMixin(Et2Textbox)
+{
+	constructor()
+	{
+		super();
+		//this.defaultValidators.push(...);
+		this._invokerLabel = '✆';
+		this._invokerTitle = 'Call';
+		this._invokerAction = () => this.__invokerAction();
+	}
+
+	__invokerAction()
+	{
+		let value = this.value;
+		// Clean number
+		value = value.replace('&#9829;','').replace('(0)','');
+		value = value.replace(/[abc]/gi,2).replace(/[def]/gi,3).replace(/[ghi]/gi,4).replace(/[jkl]/gi,5).replace(/[mno]/gi,6);
+		value = value.replace(/[pqrs]/gi,7).replace(/[tuv]/gi,8).replace(/[wxyz]/gi,9);
+		// remove everything but numbers and plus, as telephon software might not like it
+		value = value.replace(/[^0-9+]/g, '');
+
+		// mobile Webkit (iPhone, Android) have precedence over server configuration!
+		if (navigator.userAgent.indexOf('AppleWebKit') !== -1 &&
+			(navigator.userAgent.indexOf("iPhone") !== -1 || navigator.userAgent.indexOf("Android") !== -1))
+		{
+			window.open("tel:"+value);
+		}
+		else if (this.egw().config("call_link"))
+		{
+			var link = this.egw().config("call_link")
+				// tel: links use no URL encoding according to rfc3966 section-5.1.4
+				.replace("%1", this.egw().config("call_link").substr(0, 4) == 'tel:' ?
+					value : encodeURIComponent(value))
+				.replace("%u",this.egw().user('account_lid'))
+				.replace("%t",this.egw().user('account_phone'));
+			var popup = this.egw().config("call_popup");
+			if (popup && popup !== '_self' || !link.match(/^https?:/))	// execute non-http(s) links eg. tel: like before
+			{
+				egw.open_link(link, '_phonecall', popup);
+			}
+			else
+			{
+				// No popup, use AJAX.  We don't care about the response.
+				window.fetch(link, {
+					headers: { 'Content-Type': 'application/json'},
+					method: "GET",
+				});
+			}
+		}
+	}
+}
+// @ts-ignore TypeScript is not recognizing that this is a LitElement
+customElements.define("et2-url-phone", Et2UrlPhone);
\ No newline at end of file
diff --git a/api/js/etemplate/Validators/IsEmail.ts b/api/js/etemplate/Validators/IsEmail.ts
new file mode 100644
index 0000000000..949c74dae3
--- /dev/null
+++ b/api/js/etemplate/Validators/IsEmail.ts
@@ -0,0 +1,44 @@
+import {Pattern} from "@lion/form-core";
+
+export class IsEmail extends Pattern
+{
+	/**
+	 * Regexes for validating email addresses incl. email in angle-brackets eg.
+	 * + "Ralf Becker <rb@egroupware.org>"
+	 * + "Ralf Becker (EGroupware GmbH) <rb@egroupware.org>"
+	 * + "<rb@egroupware.org>" or "rb@egroupware.org"
+	 * + '"Becker, Ralf" <rb@egroupware.org>'
+	 * + "'Becker, Ralf' <rb@egroupware.org>"
+	 * but NOT:
+	 * - "Becker, Ralf <rb@egroupware.org>" (contains comma outside " or ' enclosed block)
+	 * - "Becker < Ralf <rb@egroupware.org>" (contains <    ----------- " ---------------)
+	 *
+	 * About umlaut or IDN domains: we currently only allow German umlauts in domain part!
+	 * We forbid all non-ascii chars in local part, as Horde does not yet support SMTPUTF8 extension (rfc6531)
+	 * and we get a "SMTP server does not support internationalized header data" error otherwise.
+	 *
+	 * Using \042 instead of " to NOT stall minifyer!
+	 *
+	 * Similar, but not identical, preg is in Etemplate\Widget\Url PHP class!
+	 * We can not use "(?<![.\s])", used to check that name-part does not end in
+	 * a dot or white-space. The expression is valid in recent Chrome, but fails
+	 * eg. in Safari 11.0 or node.js 4.8.3 and therefore grunt uglify!
+	 * Server-side will fail in that case because it uses the full regexp.
+	 */
+	static EMAIL_PREG : RegExp = new RegExp(/^(([^\042',<][^,<]+|\042[^\042]+\042|\'[^\']+\'|"(?:[^"\\]|\\.)*")\s?<)?[^\x00-\x20()\xe2\x80\x8b<>@,;:\042\[\]\x80-\xff]+@([a-z0-9ÄÖÜäöüß](|[a-z0-9ÄÖÜäöüß_-]*[a-z0-9ÄÖÜäöüß])\.)+[a-z]{2,}>?$/i);
+
+	constructor()
+	{
+		super(IsEmail.EMAIL_PREG);
+	}
+
+	/**
+	 * Give a message about this field being required.  Could be customised according to MessageData.
+	 * @param {MessageData | undefined} data
+	 * @returns {Promise<string>}
+	 */
+	static async getMessage(data)
+	{
+		return data.formControl.egw().lang("Invalid email");
+	}
+}
\ No newline at end of file
diff --git a/api/js/etemplate/etemplate2.ts b/api/js/etemplate/etemplate2.ts
index 89913a1294..5841b19465 100644
--- a/api/js/etemplate/etemplate2.ts
+++ b/api/js/etemplate/etemplate2.ts
@@ -46,6 +46,8 @@ import './Et2Textbox/Et2Number';
 import './Et2Textbox/Et2NumberReadonly';
 import './Et2Colorpicker/Et2Colorpicker';
 import './Et2Taglist/Et2Taglist';
+import './Et2Url/Et2UrlEmail';
+import './Et2Url/Et2UrlPhone';
 
 /* Include all widget classes here, we only care about them registering, not importing anything*/
 import './et2_widget_vfs'; // Vfs must be first (before et2_widget_file) due to import cycle