[Freeswitch-users] Force presence status manually

Hello, is there a way to manually force a presence status update? In our scenario we have a Freeswitch cluster. As phones sometimes register on one and one time on another machine via the load balancer, we cannot dial via user/exten. Instead we dial each phone by it's register string via xml-curl. That way -when a phone is called - other phones who subscribed to this phone, do not receive a message to update their presence status. Is there a way to force the pesence status of a phone manually in the dialplan? We may then set the status before bridging and then reset it with a hangup hook. Best regards Peter