Introduction

Many platforms have the capability to poll a device in an active call to make sure the device is still responsive.

The Platforms sends a SIP UPDATE message and the device should answer with a 200 OK.

If the device does not answer with an 200 OK, the platform disconnects the call.

Enable SIP UPDATE

First you need to check if the SIP UPDATE is supported by the device, see this wiki article: FAQ N510 SIP UPDATE message

Session timer Passive support.

For the N510, we support the Session timer passive functionality.

To enable this feature, you need to enable the Minimum session timer setting. This can only be done via provisioning or restore this config file to change the value below to 300 seconds.

SIP update must be enabled, see the above info.

ParameterMinimum valueRecommended ValueNew SIP Header when enabled
BS_VOIP_Data.astVoipProviders[%].ulSessionRefresh_MIN_SE90300Min-SE: 300

 

Session timer Active support

This is not supported by the N510, can only be used to make some tests.

To enable this feature, you need to change the setting below. This can only be done via provisioning or restore this config file to change the value below to 300 seconds.
SIP update must be enabled, see the above info.

ParameterValueNew SIP Header when enabled
BS_VOIP_Data.astVoipProviders[%].ulSessionRefresh_session_expires300Session-Expires: 300;refresher=uac
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