diff --git a/frontend/src/lib/components/textfield/TelephoneField.svelte b/frontend/src/lib/components/textfield/TelephoneField.svelte
index b8eed07..89d87c7 100644
--- a/frontend/src/lib/components/textfield/TelephoneField.svelte
+++ b/frontend/src/lib/components/textfield/TelephoneField.svelte
@@ -1,39 +1,100 @@
 <script lang="ts">
 	import Telephone from '../icons/Telephone.svelte';
-	import TextField from './TextField.svelte';
+	import { tippy } from 'svelte-tippy';
+	import 'tippy.js/dist/tippy.css';
 
-	let helperText: string = 'Zadejte platný telefon s předvolbou. Například +420 123 456 789';
-	export let placeholder: string = '';
+	const helperText: string = 'Zadejte platný telefon s předvolbou. Například +420 123 456 789';
+	export let placeholder: string = ''; // TODO
 
-	export let value: string = '';
-	export let error: string = '';
+	import TelInput, { normalizedCountries } from 'svelte-tel-input';
+	import type { NormalizedTelNumber, CountryCode, E164Number } from 'svelte-tel-input/types';
 
-	// Phone Number formatting
-	$: {
-		let x = value.replace(/\D/g, '').match(/(\d{0,3})(\d{0,3})(\d{0,3})(\d{0,3})/)!;
-		value =
-			(x[1] ? '+' + x[1] : '') +
-			(x[2] ? ' ' + x[2] : '') +
-			(x[3] ? ' ' + x[3] : '') +
-			(x[4] ? ' ' + x[4] : '');
-	}
+	// Any Country Code Alpha-2 (ISO 3166)
+	let country: CountryCode | null = 'CZ';
+
+	// You must use E164 number format. It's guarantee the parsing and storing consistency.
+	export let value: E164Number | null = '+36301234567';
+
+    // Validity
+    let valid = true;
+	export let invalid: boolean = false;
+	$: invalid = !valid;
+
+	// Optional - Extended details about the parsed phone number
+	let parsedTelInput: NormalizedTelNumber | null = null;
+
+	let selectedCountry: string | null = country;
+
+	const countrySelect = (e: any) => {
+		selectedCountry = e.target.value;
+		// @ts-ignore
+		country = selectedCountry;
+		value = null;
+	};
+
+	const isTooltip = helperText ? tippy : () => {};
+	$: tooltipDelay = invalid ? 0 : 1000;
 </script>
 
-<TextField
-	bind:error
-	bind:value
-	on:keydown
-	on:keyup
-	on:change
-	type="tel"
-	{placeholder}
-	{helperText}
-	icon
+<div class="wrapper w-full h-full flex"
+	use:isTooltip={{
+		content: helperText,
+		placement: 'top',
+		showOnCreate: false,
+		delay: tooltipDelay
+	}}
 >
-	<div slot="icon" class="flex items-center justify-center">
-		<Telephone />
+	<select
+		class="countrySelect {!valid && 'invalid'}"
+		aria-label="Default select example"
+		name="Country"
+		bind:value={selectedCountry}
+		on:input={countrySelect}
+	>
+		<option value={null} hidden={selectedCountry !== null}>Země</option>
+		{#each normalizedCountries as country (country.id)}
+			<option
+				value={country.iso2}
+				selected={country.iso2 === selectedCountry}
+				aria-selected={country.iso2 === selectedCountry}
+			>
+				{country.iso2} (+{country.dialCode})
+			</option>
+		{/each}
+	</select>
+	<div class="ml-2 inputWrapper">
+		<TelInput bind:country bind:value bind:valid bind:parsedTelInput class="basic-tel-input {!valid ? 'invalid' : '' }" />
+		<span>
+			<Telephone />
+		</span>
 	</div>
-</TextField>
+</div>
 
 <style lang="postcss">
-</style>
+	select {
+		@apply h-full pl-3 pr-3 border-1 w-2/5 rounded;
+		@apply hover:border-sspsBlue rounded-lg border border-2 bg-[#f8fafb] p-3 text-xl shadow-lg outline-none transition-colors  duration-300;
+	}
+	.inputWrapper {
+		@apply w-full relative;
+	}
+	.inputWrapper span {
+		@apply absolute right-0 top-1 bottom-0 my-auto flex bg-transparent p-3;
+	}
+  .wrapper :global(.basic-tel-input) {
+      /* height: 32px;
+      padding-left: 12px;
+      padding-right: 12px;
+      border-radius: 6px;
+      border: 1px solid;
+      outline: none;
+	  width: 100%; */
+	  /* @apply h-full pl-3 pr-3 border-1 w-full rounded; */
+	  @apply hover:border-sspsBlue w-full rounded-lg border border-2 bg-[#f8fafb] p-3 text-xl shadow-lg outline-none transition-colors  duration-300;
+  }
+
+  .wrapper :global(.invalid) {
+    /* border-color: red; */
+	@apply border-red-700;
+  }
+</style>
\ No newline at end of file
diff --git a/frontend/src/routes/(candidate)/(authenticated)/register/+page.svelte b/frontend/src/routes/(candidate)/(authenticated)/register/+page.svelte
index 7e0382d..af56e7b 100644
--- a/frontend/src/routes/(candidate)/(authenticated)/register/+page.svelte
+++ b/frontend/src/routes/(candidate)/(authenticated)/register/+page.svelte
@@ -18,7 +18,7 @@
 	import { SvelteToast, toast } from '@zerodevx/svelte-toast';
 
 	import { createForm } from 'svelte-forms-lib';
-	import type { Writable } from 'svelte/store';
+	import { writable, type Writable } from 'svelte/store';
 	import * as yup from 'yup';
 	import type { CandidateData } from '$lib/stores/candidate';
 	import AccountLinkCheckBox from '$lib/components/checkbox/AccountLinkCheckBox.svelte';
@@ -46,7 +46,19 @@
 	export let data: PageData;
 	let details = data.candidate;
 	let baseCandidateDetails = data.whoami;
-
+	let componentErrors = writable( {
+		candidate: {
+			telephone: false,
+		},
+		parents: [
+			{
+				telephone: false,
+			},
+			{
+				telephone: false,
+			}
+		]
+	});
 	let personalIdBirthdateMatch = true;
 	const formInitialValues = {
 		gdpr: false,
@@ -106,8 +118,7 @@
 			email: yup.string().email().required(),
 			telephone: yup
 				.string()
-				.required()
-				.matches(/^\+\d{1,3} \d{3} \d{3} \d{3}$/),
+				.required(), // already validated by the 'TelephoneField' component
 			birthplace: yup.string().required(),
 			birthdate: yup
 				.string()
@@ -286,7 +297,7 @@
 
 		onSubmit: async (values: CandidateData) => onSubmit(values)
 	});
-
+	$: console.log($componentErrors['candidate']['telephone'])
 	const isPageInvalid = (index: number): boolean => {
 		switch (index) {
 			case 0:
@@ -311,7 +322,8 @@
 					$typedErrors['candidate']['name'] ||
 					$typedErrors['candidate']['surname'] ||
 					$typedErrors['candidate']['email'] ||
-					$typedErrors['candidate']['telephone'] ||
+					// $typedErrors['candidate']['telephone'] ||
+					$componentErrors['candidate']['telephone'] ||
 					$typedErrors['candidate']['city'] ||
 					$typedErrors['candidate']['street'] ||
 					$typedErrors['candidate']['houseNumber'] ||
@@ -341,7 +353,8 @@
 					$typedErrors['parents'][0]['name'] ||
 					$typedErrors['parents'][0]['surname'] ||
 					$typedErrors['parents'][0]['email'] ||
-					$typedErrors['parents'][0]['telephone']
+					// $typedErrors['parents'][0]['telephone']
+					$componentErrors['parents'][0]['telephone']
 				) {
 					return true;
 				}
@@ -351,7 +364,8 @@
 					$typedErrors['parents'][1]['name'] ||
 					$typedErrors['parents'][1]['surname'] ||
 					$typedErrors['parents'][1]['email'] ||
-					$typedErrors['parents'][1]['telephone']
+					// $typedErrors['parents'][1]['telephone']
+					$componentErrors['parents'][1]['telephone']
 				) {
 					return true;
 				}
@@ -511,6 +525,14 @@
 									/>
 								</span>
 							</div>
+							<span class="field ml-2">
+								<TelephoneField
+									bind:invalid={$componentErrors['candidate']['telephone']}
+									bind:value={$form.candidate.telephone}
+									placeholder={$LL.input.telephone()}
+								/>
+							</span>
+							<div>
 							<div class="field flex">
 								<span class="w-[50%]">
 									<EmailField
@@ -519,23 +541,17 @@
 										placeholder={$LL.input.email()}
 									/>
 								</span>
-								<span class="ml-2 w-[50%]">
-									<TelephoneField
-										error={$typedErrors['candidate']['telephone']}
-										bind:value={$form.candidate.telephone}
-										placeholder={$LL.input.telephone()}
+								<span class="w-[50%]">
+									<TextField
+										error={$typedErrors['candidate']['city']}
+										bind:value={$form.candidate.city}
+										type="text"
+										placeholder={$LL.input.city()}
+										helperText="Uveďte poštovní směrovací číslo. (např. 602 00)"
 									/>
 								</span>
 							</div>
-							<span class="field">
-								<TextField
-									error={$typedErrors['candidate']['city']}
-									bind:value={$form.candidate.city}
-									type="text"
-									placeholder={$LL.input.city()}
-									helperText="Uveďte poštovní směrovací číslo. (např. 602 00)"
-								/>
-							</span>
+						</div>
 						</div>
 						<div class="field flex">
 							<span class="w-[66%]">
@@ -675,7 +691,7 @@
 					</span>
 					<span class="field">
 						<TelephoneField
-							error={$typedErrors['parents'][0]['telephone']}
+							bind:invalid={$componentErrors['parents'][0]['telephone']}
 							bind:value={$form.parents[0].telephone}
 							placeholder={$LL.input.parent.telephone()}
 						/>
@@ -704,7 +720,7 @@
 					</span>
 					<span class="field">
 						<TelephoneField
-							error={$typedErrors['parents'][1]['telephone']}
+						bind:invalid={$componentErrors['parents'][1]['telephone']}
 							bind:value={$form.parents[1].telephone}
 							placeholder={`${$LL.input.parent.telephone()} (${$LL.input.optional()})`}
 						/>