Yes, the chain is: carrier -> LB -> B2B -> Asterisk. And when Asterisk generates an REFER (for call transfer) , the REFER will be received by B2B which will handle it (it will generate a new call leg) without changing anything on the leg connecting the b2b to the carrier.

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  http://www.opensips-solutions.com
OpenSIPS Summit 2018
  http://www.opensips.org/events/Summit-2018Amsterdam

On 02/12/2018 04:41 PM, Brian Southworth wrote:

Hi Bogan,

Thanks for the reply, so are you saying the load balancer will send the call over to the B2B and then to asterisk ?

Again sorry for my lack of knowledge there is still a lot I don’t understand or know.

Regards,

Brian Southworth

Communications Developer

*From:*Bogdan-Andrei Iancu [mailto:bog...@opensips.org]
*Sent:* 12 February 2018 14:23
*To:* Brian Southworth <brian.southwo...@clocom.uk>; OpenSIPS users mailling list <users@lists.opensips.org> *Subject:* Re: [OpenSIPS-Users] [15066] WARNING:rr:after_strict: no socket found to match RR [1][XXX.XXX.XXX.XXX:5060]

Hi Brian,

In this case, I guess that the OPenSIPS B2B (handling the REFER) should sit between the OpenSIPS LB and Asterisk - again , this is the case only if the result of the transfer is a call to an Asterisk box too. If the call may be redirected back to a carrier, the OpenSIPS B2B should sit in front of the LB.

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
   http://www.opensips-solutions.com
OpenSIPS Summit 2018
   http://www.opensips.org/events/Summit-2018Amsterdam

On 02/07/2018 03:38 PM, Brian Southworth wrote:

    Opensips handles the refer sending it to the asterisk box

    Regards,

    Brian Southworth

    Communications Developer



    111 Wilmslow Road

    Handforth

    Wilmslow

    SK9 3ER

    T: 03333 446677

    W: www.clocom.uk <http://www.clocom.uk/>__


        
        

        

        

    __

    *From:*Bogdan-Andrei Iancu [mailto:bog...@opensips.org]
    *Sent:* 07 February 2018 11:36
    *To:* Brian Southworth <brian.southwo...@clocom.uk>
    <mailto:brian.southwo...@clocom.uk>; OpenSIPS users mailling list
    <users@lists.opensips.org> <mailto:users@lists.opensips.org>
    *Subject:* Re: [OpenSIPS-Users] [15066] WARNING:rr:after_strict:
    no socket found to match RR [1][XXX.XXX.XXX.XXX:5060]

    So the target of the refer is to another Asterisk or may be also
    back to the carrier ?



    Bogdan-Andrei Iancu

    OpenSIPS Founder and Developer

       http://www.opensips-solutions.com

    OpenSIPS Summit 2018

       http://www.opensips.org/events/Summit-2018Amsterdam

    On 02/07/2018 01:32 PM, Brian Southworth wrote:

        Hi Bogdan,

        The Cisco phone, generates the refer once you press the xfer
        button when inside a call.

        Caller àopensipsàasteriskàCarrier

        (cisco)

        Regards,

        Brian Southworth

        T: 03333 446677

        W: www.clocom.uk <http://www.clocom.uk/>__


                
                
                
                

                
                
                
                

                
                
                

                

        *From:*Bogdan-Andrei Iancu [mailto:bog...@opensips.org]
        *Sent:* 07 February 2018 09:38
        *To:* Brian Southworth <brian.southwo...@clocom.uk>
        <mailto:brian.southwo...@clocom.uk>; OpenSIPS users mailling
        list <users@lists.opensips.org> <mailto:users@lists.opensips.org>
        *Subject:* Re: [OpenSIPS-Users] [15066]
        WARNING:rr:after_strict: no socket found to match RR
        [1][XXX.XXX.XXX.XXX:5060]

        Hi Brian,

        Which party is generating the REFER ? the asterisk boxes from
        behind the LB ? or the carrier side ?

        and yes, see you in Amsterdam !!

        Regards,



        Bogdan-Andrei Iancu

        OpenSIPS Founder and Developer

           http://www.opensips-solutions.com

        OpenSIPS Summit 2018

           http://www.opensips.org/events/Summit-2018Amsterdam

        On 02/05/2018 05:52 PM, Brian Southworth wrote:

            I think I get it now thank you Bogdan.

            So I would forward the traffic using the opensips proxy,
            using the if (is_method(“refer”)) to the opensips box that
            would be the B2BUA? To bridge the call ?.

            Also look forward to Opensips summit in may 😊ill see you
            all there got it booked Saturday 😊

            Regards,

            Brian Southworth


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