Setup a call to a group of phones

Hello all,

i am trying to call a group of phones, that can autoanswer, and then establish some kind of a conference dialog. I need anyway just to send them some audio messages, and not to receive, so not a conference but something like paging audio to a group of phones in a single direction.

I have read many posts in the forum since this has already been done trough *. I end up trying the solution Page(), with zaptel dummy module for the timing (any easier way is appreciated).

so i have now the following configuration:

sip.conf


[10000]
type=friend
secret=xxxxxx
host=dynamic

[10001]
type=friend
secret=xxxxxx
host=dynamic

[10027]
type=friend
secret=xxxxxx
host=dynamic

[10028]
type=friend
secret=xxxxxx
host=dynamic

extension:

exten => 10000,1,SipAddHeader(Special Command: paging)
exten => 10000,2,Page(sip/10027&sip/10028)

Special command help for the autoanswer.
So, when the ext 10001 call the 10000, this configuration results in establishing the call (both phones answer to the invites sending 200 OK) but then, from what i see, there is RTP traffic but only from the 2 phones to the pbx, i can’t see any rtp audio packet sent from the PBX to the phones.

I am stuck here actually, going on studying on this, but any help will be very appreciated.

many thanks,
greetings, angelo