Caution
It is impossible to send the DTMF code from the application outside a
call for technical reasons. Therefore, if you press the lock outside a call in
the SIP Proxy mode, a call is set up first during which the DTMF is sent
automatically.
If the device and the application are in one and the same Helios IP 2N
LAN, the incoming call is always identified as a LAN call even if it goes
via a SIP Proxy server. If you require SIP Proxy identification and the
application and share one and the same LAN, set a different 2N Helios IP
password in the application.2N Helios IP Group Authentication
®
Warning
Remember that calls from a phone that uses data connection instead Wi-
Fi consume data from your mobile provider's data package!
Refer to for more details on SIP Proxy server calls.faq.2n.cz
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