How to trigger a phone call when clicking a link in a web page on mobile phone

Question

I need to build a web page for mobile devices  There s only one thing I still haven t figured out  how can I trigger a phone call through the click of text   Is there a special URL I could enter like the mailto  tag for emails   Device specific solution are not preferred   I know iPhone automatically recognizes phone numbers and creates a link for this  but it would be great if this could be done for images too    and also for most mobile devices

User · Answer

Clickable smartphone link code   The following link can be used to make a clickable phone link  You can copy the code below and paste it into your webpage  then edit with your phone number  This code may not work on all phones but does work for iPhone  Droid   Android  and Blackberry    lt a href  tel 1-847-555-5555  gt 1-847-555-5555 lt  a gt    Phone number links can be used with the dashes  as shown above  or without them as well as in the following example    lt a href  tel 18475555555  gt 1-847-555-5555 lt  a gt    It is also possible to use any text in the link as long as the phone number is set up with the  tel 18475555555  as in this example    lt a href  tel 18475555555  gt Click Here To Call Support 1-847-555-5555 lt  a gt    Below is a clickable telephone hyperlink you can check out  In most non-phone browsers this link will give you a  The webpage cannot be displayed  error or nothing will happen   NOTE  The iPhone Safari browser will automatically detect a phone number on a page and will convert the text into a call link without using any of the code on this page   WTAI smartphone link code  The WTAI or  Wireless Telephony Application Interface  link code is shown below  This code is considered to be the correct mobile phone protocol and will work on smartphones like Droid  however  it may not work for Apple Safari on iPhone and the above code is recommended    lt a href  wtai   wp mc 18475555555  gt Click Here To Call Support 1-847-555-5555 lt  a gt

User · Answer

Most modern devices support the tel  scheme  So use  lt a href  tel 555-555-5555  gt 555-555-5555 lt  a gt  and you should be good to go   If you want to use it for an image  the  lt a gt  tag can handle the  lt img  gt  placed in it just like other normal situations with    lt a href  tel 555-555-5555  gt  lt img src  path to phone icon jpg    gt  lt  a gt

User · Answer

The proper URL scheme is tel  number  so you would do  x000D   x000D   lt a href  tel 5551234567  gt  lt img src  callme jpg    gt  lt  a gt  x000D   x000D   x000D

User · Answer

Just use HTML anchor tag  lt a gt  and start the attribute href with tel   I suggest starting the phone number with the country code  pay attention to the following example    lt a href  tel  989123456789  gt NO Different What it is lt  a gt    For this example  the country code is  98   Hint  It is so suitable for cellphones  I know tel  prefix calls FaceTime on macOS but on Windows I m not sure  but I guess it caused to launch Skype   For more information  you can visit the list of URL schemes supported by browsers to know all href values prefixes

User · Answer

Essentially  use an  lt a gt  element with an href attr pointing to the phone number prefixed by tel   Note that pluses can be used to specify country code  and hyphens can be included simply for human eyes   MDN Web Docs  https   developer mozilla org en-US docs Web HTML Element a Creating a phone link     The HTML  lt a gt  element  or anchor element   along with its href attribute  creates a hyperlink to other web pages  files  locations within the same page  email addresses  or any other URL                  Offering phone links is helpful for users viewing web documents and laptops connected to phones        lt a href  tel  491570156  gt  49 157 0156 lt  a gt    IETF Documents  https   tools ietf org html rfc3966     The tel URI for Telephone Numbers      The  tel  URI has the following syntax       telephone-uri           tel   telephone-subscriber                 Examples      tel  1-201-555-0123  This URI points to a phone number in the United        States   The hyphens are included to make the number more human        readable  they separate country  area code and subscriber number       tel 7042 phone-context example com  The URI describes a local phone           number valid within the context  example com        tel 863-1234 phone-context  1-914-555  The URI describes a local        phone number that is valid within a particular phone prefix

User · Answer

Want to add an answer here for the sake of completeness    lt a href  tel 1234567  gt Call 123-4567 lt  a gt    Works just fine on most devices  However  on desktops this will appear as a link which does nothing when you click on it so you should consider using CSS to make it conditionally visible only on mobile devices   Also  you should know that Skype  which is fairly popular  uses a different syntax by default  but can be parametered to use tel      lt a href  callto 1234567  gt Call 123-4567 lt  a gt    However  I think in latest mobile browsers  I know for sure on Android  now the tel syntax should offer a popup of available applications that can be used to complete the calling action

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