[Asterisk-Users] Ring more than two isdn phones simultaneously

[Arik Funke]

I am using a HFC-S card in nt mode with zaphfc driver to connect an 
internal isdn bus. I would like to signal an incoming call on, let's 
say, 4 phones. Right now I use:

Dial(Zap/g1/21&Zap/g1/22&Zap/g1/24&Zap/g1/23&Zap/g1/29,,t)

where g1 are my two isdn channels provided by HFC-S card an the 
21,22,etc my internal numbers.

When the command is executed however, only the first two specified 
phones ring. Etc. with the first channel 21 ist called, with the second 
22. How can I get asterisk to signal to all phones with just one isdn 
channel? I am trying to duplicate the setup I had with my old isdn pbx 
with did above trick just fine... Maybe somebody can help me configure 
asterisk appropriately?

Cheers,
Arik


PS: I gave following a try but without success:
Dial(Zap/g1/21-29,,t)
Dial(Zap/g1/21+29,,t)