[Freeswitch-users] Originate call into conference - no early media

[Alex Crow]

On 20/04/12 01:37, Anthony Minessale wrote:
> You only get it when you actually are being sent early media.
> Probably the ones that dont have any sound are only sending 180 so
> there is nothing you can do about it.
>

Anthony,

Thanks, I figured out how to fake ringback for endpoints that only send 180:

<condition field="destination_number" 
expression="^ADD_CALL_TO_CONF__(1\d{3}|11\d{4})$" break="on-true">
<action application="set" data="new_uuid=${create_uuid foo}" inline="true"/>
<action application="set" data="pb_uuid=${create_uuid foo}" inline="true"/>
<action application="hash" 
data="insert/domain-${domain_name}/last_user_$1/${new_uuid}" />
<action application="set" data="res=${bgapi originate 
{origination_uuid=${pb_uuid}}loopback/*9181 
&conference(${conference_name})}"/>
<action application="set" data="res=${bgapi originate 
{origination_uuid=${new_uuid},api_on_answer='uuid_kill 
${pb_uuid}'}user/$1 &conference(${conference_name})}"/>
</condition>


where *9181 is an extension that does a 183 with ringback of ${uk-ring}.

Do I really need the inline=true on setting pb_uuid by the way?

The reason I didn't do the whole thing using loopback is that even when 
the parties called into the conference support wideband codecs (eg 
G722), the loopback always uses L16/8000, and so the audio is squeezed 
through a 4khz B/W channel even if the phones involved are using 
wideband codecs. If I originate into the conference I don't have that 
issue, I get HD audio all the way. Is that expected or is there a way 
around it?

eg:

<action application="set" data="new_uuid=${create_uuid foo}" inline="true"/>
<action application="hash" 
data="insert/domain-${domain_name}/last_user_$1/${new_uuid}" />
<action application="set" data="res=${bgapi originate 
{origination_uuid=${new_uuid}}loopback/$1/default 
&conference(${conference_name})}"/>


Produces PSTN quality audio on dialed-in parties even though they 
negotiated G722.

Many thanks for your help

Alex