How to make USSD iOS 7 from an html application?

Don't know whether the problem is iOS 7 or she was before, but I can't get USSD requests from your browser. Android works, iOS 7 — no.
<a href="tel:*100% 23">Make USSD</a>
When you click on this link Android opens phone app with number pregnanancy.
iOS prompts you for confirmation before dialing and then nothing happens. Somebody faced? Knows how to treat?
September 26th 19 at 06:31
1 answer
September 26th 19 at 06:33
No way. Apple says:
To prevent users from maliciously redirecting phone calls or changing the behavior of a phone or account, the Phone application supports most, but not all, of the special characters in the tel scheme. Specifically, if a URL contains the * or # characters, the Phone application does not attempt to dial the corresponding phone number

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