Continuous alert on Android

[MatthijsD]

Hello users,

Since a couple of days I started automating my house with Domoticz.
I'm running it on a Synology NAS with a RFXcom module; Works amazing.

I just installed a KAKU doorbell, so I can get an alert when we're in de backyard and can't hear the doorbell.
Notification works OK with GCM, but the phone only notifies me once.

Is it possible to set up a continuous alert untill I stop it manually on my phone?