[Freeswitch-users] Ringtone on multiple destinations

[Christian Benke]

> You MUST ignore early media when doing an enterprise originate. Therefore,
> to get ringback tone you'll need to set the ringback channel variable on the
> A leg. Your extension will end up looking something like this:
>
> <action application="set" data="ringback=${us-ring}"/>
> <action application="bridge"
> data="<ignore_early_media=true>[leg_timeout=0][origination_caller_id_number=30]user/35@${domain_name}:_:[leg_timeout=0][origination_caller_id_number=30]user/31@${domain_name}"/>


Thanks, this is obviously fixing the situation with SIP to SIP.

However, there are still issues when calling in via ISDN(Inbound Call
from ISDN to multiple SIP-endpoints), the results vary:

- On calling a single endpoint, tone is played when "ringback" is set
to UNDEFINED, but not when it's set to a proper value. Adding a
"ring_ready" will obviously make both variants work.

- On calling multiple endpoints, a tone is ONLY transmitted when
"ring_ready" is set - if i understand correctly, this will send a
RINGING regardless of the endpoints response. Without explicitely
setting ring_ready, the callstate never changes from PROCEED, even
though the endpoints indicate they are 180 RINGING. Setting ringback
to UNDEF or a proper value doesn't change the result.

Is there a way to use the actual RINGING-signalisation of multiple
endpoints as a trigger for FS to change the callstate to RINGING
instead of doing it artificially with ring_ready?


Here are the results in detail(See attached logs)

ISDN to single SIP-Endpoint:
No Tone:
freeswitch_single_isdn_no_ring_ready_ringback_rs_ring.log

Tone works:
freeswitch_single_isdn_no_ring_ready_ringback_empty.lo
freeswitch_single_isdn_ring_ready_ringback_rs_ring.log
freeswitch_single_isdn_ring_ready_ringback_empty.log

ISDN to multiple SIP-Endpoints:
No Tone:
freeswitch_multiple_isdn_no_ring_ready_ringback_empty.log
freeswitch_multiple_isdn_no_ring_ready_ringback_rs_ring.log

Tone works:
freeswitch_multiple_isdn_ring_ready_ringback_empty.log
freeswitch_multiple_isdn_ring_ready_ringback_rs_ring.log


And btw, i got the hint... ;-) (Not yet available in Europe though)
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