Snom 360 Manual page 103

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S N O M
as long as the involved communication partners are both using the same
value.
Network identity (port): Set a static local port number, which is
used for the SIP protocol communication, in this fi eld. Usually, the phone
chooses a random one!
SIP T1 (ms): Set the retry timer in milliseconds after which an
unanswered request is resent. If it is set to 500, the phone will resend
the unanswered request after 500, 1000, 2000, 4000, 6000...31500 ms.
If the request is still unanswered after this procedure, an error message
will be shown on the display.
SIP Session Timer (s): Specify the session timer for SIP in seconds
in this fi eld. For instance, a Re-INVITE will be sent after its expiration.
Dirty Host TTL (s): Specify the "Time to Live" (TTL) for dirty
hosts in seconds. This means that, when a phone was unable to reach a
host, the phone will not try to reach this host again until the time specifi ed
in this fi eld has elapsed.
SIP Max Forwards: If you set a maximum number of forwards in
this fi eld, each time a forward is sent the counter is reduced by one. When
zero is reached, the forwarding will stop. This prevents the phone from
running into a SIP message-forwarding loop.
ENUM Suffi x: When using ENUM, you can specify a service suffi x
here, if desired. There is more than one service that supports ENUM
lookups, and you can select here which one you want to use. Leave the
default value e164.arpa if you don't know.
Use user=phone:
user=phone in SIP URIs. This is to distinguish phones from different non-
phone devices like gateways, etc. (RFC2543 deprecated).
Publish Presence: When this feature is set to "on", the phone
sends out PUBLISH messages showing the phone's status.
Refer-To Brackets: Switch additional brackets on or off in the
Signaling for Refer-To. As some devices rely on this setting, we are kind
enough to offer a solution!
Require PRACK: To force the use of PRACK, choose "on" here.
"PRACK" messages are used to acknowledge the receipt of "180 Ringing"
messages, which are usually not acknowledged. This helps, for example,
to inform gateways whether the phone has actually begun to ring.
3 6 0 U M
S E R A N U A L
Turn this setting on if you want to use
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snom technology AG • 103
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