asterisk users - Jan 2004 - threewaycalling ? (Bridge 2 SIP calls?)

Let me ask a simple question for some to answer. I need asterisk to
perform three-party-conference between SIP phones. Is there any setting
required on sip.conf ? I see Zapata.conf has threewaycalling=yes
parameter. Is there anything similar required in sip.conf or elsewhere.
I do not use any hardware. I use * with Cisco ATA 186 adapters. Thank
you in advance. 

- SamW

SamW wrote:
>Let me ask a simple question for some to answer. I need asterisk to
>perform three-party-conference between SIP phones. Is there any setting
>required on sip.conf ? I see Zapata.conf has threewaycalling=yes
>parameter. Is there anything similar required in sip.conf or elsewhere.
>I do not use any hardware. I use * with Cisco ATA 186 adapters. Thank
>you in advance. 
>
>  
>
IIRC the threewaycalling option only applies to analog extensions..

If you want it on SIP then you simply have to make sure the phone 
supports it.. Both my Grandstream and Snom support it so I am sure most 
phones do.. in fact off the top of my head the only one I know that 
specifically does not support it is X-Lite..

Later..

Hi!
> Let me ask a simple question for some to answer. I need asterisk to
> perform three-party-conference between SIP phones. Is there any setting
> required on sip.conf ? I see Zapata.conf has threewaycalling=yes
> parameter. Is there anything similar required in sip.conf or elsewhere.
> I do not use any hardware. I use * with Cisco ATA 186 adapters.
SIP phones are "fat clients": three-way-calling is a feature that the 
phone, in your case the ATA 186, must implement, this has got nothing to 
do with Asterisk. You can look at MeetMe() for Asterisk based 
conferencing, though.

Cheers, Philipp

On Tue, 13 Jan 2004, WipeOut wrote:
> If you want it on SIP then you simply have to make sure the phone 
> supports it.. Both my Grandstream and Snom support it so I am sure most 
> phones do.. in fact off the top of my head the only one I know that 
> specifically does not support it is X-Lite..
How are you doing it on the grandstream? I have had no luck getting any 
three way calling to work.

dave

-- 
Dave Weis             "I believe there are more instances of the abridgment
djweis@sjdjweis.com   of the freedom of the people by gradual and silent
                      encroachments of those in power than by violent 
                      and sudden usurpations."- James Madison