User guide

21
SIPS (Secure SIP) is a security measure that uses TLS to provide
an encrypted end-to-end channel for the SIP messages. To use
SIPS, however, both VoIP devices and the SIP server must support
it.
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Even if Transport is set to TLS or SIPS, the Konftel 300IP still accepts incoming UDP
or TCP signalling.
On phone: MENU > SETTINGS > ADVANCED > (PIN) > ACCOUNTS > TRANSPORT (6,2,1,3).
TLS Settings
If you select TLS or SIPS under the transport setting, this additional setting appears on
the page.
It may be possible to use secure communication without a certicate and make changes
to these settings. In some cases, if you choose TLS or SIPS, the SIP server requires a
certicate for user/client verication. This should be specied in the account information.
Youcan further increase security by requiring verication of the server, or the client when
the Konftel 300IP acts as a server for incoming calls.
Method The TLS includes a variety of security measures. The methods are
dened in the versions of the standard (SSL, SSL v2, SSL v3, TLS
v1, TLS v2). The default method is SSLv23, which accepts both
SSL v2 and v3.
Negotiation timeout The TLS settings are negotiated during a call setup (both incoming
and outgoing). If this negotiation does not succeed within the
specied time (seconds) the negotiation is aborted. Timeout is
disabled with 0 (zero).
Verify client When set to On, the Konftel 300IP will activate peer verication
for incoming secure SIP connections (TLS or SIPS).
SETTINGS