Trying to get the Phonecall ID during the onsave event of the phone call - comes back as blank

var CallID = crmFormSubmit.crmFormSubmitId.value

Hello all

I tried to use this, but it does not seem to work for phone calls. Does 
anyone know how I can get at the ID of the phone call as I need to pass it

through to a webservice to manipulate some other related entities.



TIA

Saira