[Asterisk-Users] Help! No stutter dialtone on message waiting - zaptel phones

[Paul Mahler]

I have the following entry in zapata.conf, but I don't get stutter dialtone
when there is a message waiting. Suggestions? Please? 

callgroup=1
pickupgroup=1
callerid="Paul mahler" <100>
context=inside
mailbox=100
channel => 1

Thanks,

Paul