Its not a question of whether sipx does this, this is done by the UA. The gateway can receive dtmf relay and hook flash if the UA sends it.
Refer to the manual for the UA. On Mar 11, 2012 11:30 PM, "Johnathan Scott" <[email protected]> wrote: > > Content-Type: text/plain; > charset="utf-8" > Content-Transfer-Encoding: 8bit > Organization: SipXecs Forum > In-Reply-To: <CAMgKNJV7RJ0v6dQ8Lrst8EiC0iEnbLF51Y= > [email protected]> > X-FUDforum: 08063afcdd00a6e76393c5b9527381e8 <66489> > Message-ID: <[email protected]> > > > > Thank you, Tony for the reply. Yes, using the dtmf relay is > exactly the way we do it with Asterisk. Here's the > use-case: > > - Call comes in from the CO to the Patton FXO gateway > - Call-taker picks up the call using VoIP hard phone > - The call-taker determines the call needs to route to an > external agency only serviced by the Central Office network > - Call-taker hits Flash (or hook-flash), which signals the > CO to send second dial-tone > - Call-taker dials 7 or 10-digit external number > - CO routes the call to the external number > - Call-taker can either hook-flash a second time to create a > 3-way call or simply release from the call forcing the CO to > perform the transfer > > Our customers pay the phone companies for this transfer > service (mainly because they have limited lines and don't > want to tie up two lines while bridging transferred > callers). In the 911 environment this would be a 911 > transfer over CAMA (911 trunks) type trunks to the CO. The > 911 transfers are a must in our environment as callers are > frequently transferred from one Public Safety Answering > Point to another. In this case tandem transfers are > performed, which are star-code transfers. Same call flow as > above except *XX (where XX = 2-digit transfer number) is > sent to the CO vice 7 or 10-digit numbers. > > I would just like to know whether sipX handles this out of > the box or will there need to be some development done to > achieve the hook-flash. Thanks again!! > > John > _______________________________________________ > sipx-users mailing list > [email protected] > List Archive: http://list.sipfoundry.org/archive/sipx-users/ > -- LAN/Telephony/Security and Control Systems Helpdesk: Telephone: 434.984.8426 sip: [email protected] Helpdesk Customers: http://myhelp.myitdepartment.net Blog: http://blog.myitdepartment.net
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