> > >BT.COM : > >By experimentation I have been able to conclude: > >1. Does not handle REFER although it claims to do so on the basis of >Allow: ( sends BYE right away and no RE-INVITE if I send him the >REFER). >2. Does not handle codec renegotiation unless I do SDP answer in ACK >before sending a re-invite ( why? ) >3. I have also found bt.com gives you only about 20 seconds of ringing >before it hangs up. > > >CONCLUSION: BT.com will only work correctly for all call flows if >sipxbridge handles the transfer. To effect this you have to turn OFF >MOH on the phone and turn it ON for the bridge. Other configurations >will not work for all transfers and besides you will get dead air when >the transfer target is ringing. You must also turn OFF RTP Keepalive >or your call is dropped when doing the transfer ( media bridge on >their end cannot deal with RTP packets it does not recognize ). >
How are we going to either automate or clearly explain dependencies such as "For BT you have to turn MOH OFF on the phone"? --martin > > >Ranga > > > >-- >M. Ranganathan _______________________________________________ sipx-dev mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-dev Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-dev
