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Sip session timer enabled, Sip signalling version, Sip stack version – Siemens HIPATH 8000 User Manual

Page 217: Sip transport, Sip session timer

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Alphabetical Reference

217

SIP session timer enabled

• The phone supports the SIP draft ietf-sip-session-timer-08. For detailed

information relating to this draft please see http://www.ietf.org.

Session timers provide a basic keep-alive mechanism between 2 user

agents or phones. This mechanism can be useful to the endpoints con-

cerned or for stateful proxies to determine that a session is still alive.

This is achieved by the phone sending periodic re-INVITEs to keep the

session alive. The interval for the re-INVITEs is determined through a

negotiation mechanism defined in the above draft. If a re-INVITE is not

received before the interval passes, the session is considered termi-

nated. Both phones are supposed to terminate the call, and stateful

proxies can remove any state for the call.

• This feature is sufficiently backward compatible such that only one end

of a call need understand the draft and implement the SIP extensions

for it to work.

• Default value: Off.

This is because some server environments support their own mecha-

nism for auditing the health of a session (e.g. Broadsoft).

• Editing by phone: Switch Editor Æ page 157.

Æ page 62

Æ

page 115

SIP Signalling Version

• Shows the version of SIP signalling of the optiPoint 410/

420 family S V7.0.

Æ page 94

SIP Stack Version

• Shows the version of the SIP stack of the optiPoint 410/

420 family S V7.0.

Æ page 94

SIP Transport

• Use this function to define the transport protocol.

Æ page 62

Æ

page 115

Protocol

Use

UDP

Use Æ UDP for SIP messages.

TCP

Use Æ TCP for SIP messages.

TLS

Æ

TLS requires the optiPoint 410/420 family S V7.0

to have a Root certificate.