Telephone and geo location map link in html

tel-geo-url.html

Telephone link:
(Reference: http://code.tutsplus.com/tutorials/mobile-web-quick-tip-phone-number-links--mobile-7667)
Android and iOS automatically detect phone numbers with specific format.
    (555) 555-5555 (Android + iPhone)
    555 555 5555 (Android + iPhone)
    555.555.5555 (Android + iPhone)

    <!-- Embedded within normal page text -->
    <p>If you'd like to talk, <a href="tel:5555555">Call Me!</a></p>
    
    <!-- Linking a custom image -->
    <a href="tel://555-5555"><img src="phone.png" alt="Call Now!" /></a>
   
    <!-- Cross-platform compatible (Android + iPhone) -->
    <a href="tel://1-555-555-5555">+1 (555) 555-5555</a>

For IE:
(Reference: https://msdn.microsoft.com/en-us/library/dn265018%28v=vs.85%29.aspx)
* To enable the behavior for an element (and its child elements), set the x-ms-format-detection attribute to "phone" or "all".
    <div x-ms-format-detection="phone">+555-555-555</div>

* To disable the behavior for an element (and its child elements), set the x-ms-format-detection attribute to "none".
    <div x-ms-format-detection="none">+555-555-555</div>

* To disable the behavior for a webpage, use the meta element:
    <meta name="format-detection" content="telephone=no"/>

GEO location link:
No space between lat and long.
(Reference: http://www.smick.net/notebook/how-to-link-to-a-gps-coordinate-on-a-webpage-using-geo-url)
    <a href="geo:38.62464092991612,-90.18476128578186">go here</a>
    
Best read: HTML5 Geolocation and old browser support: http://diveintohtml5.info/geolocation.html