[asterisk-dev] SIP Phone Conference from Asterisk.

[md]

Hello,
ok, but does exist any sip phone where i can make the conference remotly 
(i.e. using a sip header, ...).

Thanks
----- Original Message ----- 
From: "Eric "ManxPower" Wieling" <eric at fnords.org>
To: "Asterisk Developers Mailing List" <asterisk-dev at lists.digium.com>
Sent: Wednesday, April 05, 2006 12:01 PM
Subject: Re: [asterisk-dev] SIP Phone Conference from Asterisk.


> md wrote:
>> Hi,
>> Is possible put in conference a sip phone where there are two calls (one 
>> active and the other held) from Asterisk? Is there any SIP header to 
>> activate the conference in a SIP phone remotly?
>>
>> El escenario es:
>>
>> 1. SIP A calls SIP B: call 1
>> 2. SIP A calls SIP C: call 2 --> call 1 held; call 2 active
>> 3. ASTERISK APPLICATION notify SIP A for put call 1 and call 2 in 
>> conference.
>>
>> Is the step 3 possible? Is there any SIP header to indicate to a SIP 
>> phone
>
> Step 3 is not possible in the way you describe.  However, many, many SIP 
> phones support it within the phone.  Asterisk just sees two calls.  The 
> phone does the audio mixing inside the phone.  Polycom, Cisco, and SIPura 
> phones do this.  I'm sure most other SIP phones also do it in this way. 
> This feature may be called "3-Way Calling".
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