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The preferred format is E.164, except in cases where the extension bears no resemblance to the E.164 number.
Calling device and monitored device ID — AE Services expects the calling device and monitored devices to be in either E.164PlusExt format or E.164 format. The extOnly format should be used only if there is no correlation between the E.164 number and the extension.
Called device ID — Called device IDs will not be in E.164PlusExt format, but they could be in any of the other formats. The below table describes the Tel URI formats that AE Services supports:
Format | Example |
---|---|
E.164 | tel:+13035389000 |
E.164PlusExt | tel:+13035389000;ext=1234 |
extOnly |
tel:5389000;phone-context=<domain>
where <domain> can be any organization’s domain name tel:5380112;phone-context=example.com |