How do I include extensions in the tel: URI?

问题

I currently have a webpage serving up phone numbers, some of these phone numbers have extensions so I have written the HTML like this:

<a href="tel:+44-1234-567;ext=88">+44-1234-56788</a> / <a href="tel:+44-1234-567;ext=99">+44-1234-56799</a

When I hit this page in my Android browser and tap one of the phone numbers, it loads up in my phone dialer (UK Samsung Galaxy s2 stock) as:

+44-1234-567;ext=88

which I don't think is correct. Surely it should omit the ;ext= word.

Have I misread the RFC for implementing tel?

回答1:

Seems the proper way to do it is use a comma:

<a href="tel:441234567,88">+44-1234-567 ext.88</a>

Just tested with iPhone and Android OS 2.1. Using ;ext=88 converts the ext bit into a number that is dialed with the extension (so it dials something like 35888 instead of 88).

回答2:

According to the documentation, you can add what you want like so tel:12345678;ext=123

See RFC 3966

回答3:

In all the examples I saw, the value of ext is contained in the full number. So try including 88 in the href value:

<a href="tel:+44-1234-56788;ext=88">+44-1234-56788</a>

回答4:

Standards at thenewcode from 3 months ago suggest using a microdata pause.

<a href="tel:+13235798328p22">

Related: Different standards persist across different external platforms and may change the processing of URIs. Click to call features on Google Developers docs do not specify

Example: Office's Skype uses x to represent extension within skype.