Administrator's Guide

Chapter 10. SIP Services

Requests

You can conﬁgure timeouts for the different functions of the Telecommuting Module SIP

module here. It is not recommended to change from the default values unless you really

know what you’re doing.

Default timeout for INVITE requests

When sending an INVITE request you can specify a timeout, telling how long you can wait

before getting an answer.

If no timeout is given when an INVITE request is sent, the Telecommuting Module sends

the default timeout entered here.

Maximum timeout for INVITE requests

Here, enter the maximum timeout to allow for an INVITE request. If a higher timeout is

given, the Telecommuting Module changes it to the value entered here.

SIP blacklist interval

When the Telecommuting Module sends out a SIP request and no reply is received, the SIP

peer (say, a SIP server or an IP phone) will be blacklisten for the given time interval. This

blacklisting means that no new SIP requests will be sent to the unit, even if requests that

should be routed to this unit is received by the Telecommuting Module.

If the SIP request which caused the blacklisting, or a subsequent SIP request for that unit,

can be routed to another device instead, the Telecommuting Module will keep on sending

those requests to the next known IP address for the domain/user in question. When the

blacklist ends, the Telecommuting Module will go back to sending requests to the previously

blacklisted unit again.

If a 0 is entered into this ﬁeld, the SIP blacklisting will not be used by the Telecommuting

Module.

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