Hello,

I’m trying to find more information about this Remote Attended Transfers, as is explained in https://wiki.asterisk.org/wiki/display/AST/res_pjsip+Remote+Attended+Transfers for Asterisk 12 using pjsip stack

Was Remote Attended Transfer implemented in previous versions of Asterisk
(versions without PJSIP, Asterisk 11 and previous)?

Where can I find configuration examples to do it work with the last version of Asterisk (Asterisk 13)?

I have try the following configuration without success:
2 phones and Asterisk 13 are registered in an OpenSIPS
Phone1 calls Phone2
Phone1 calls Asterisk 13
Phone1 transfers call in Asterisk 13 to Phone 2
But the transfer fails with an “NOTIFY 400 Bad Request”. In Asterisk log I
don’t see any reference to “external_replaces” extension when the REFER
arrives

pjsip.conf

[simpletrans]
type=transport protocol=udp bind=0.0.0.0

[mytrunk]
type=registration transport=simpletrans outbound_auth=mytrunk server_uri=sip:111@89.1.23.217:5060
client_uri=sip:111@89.1.23.217:5060

[mytrunk]
type=auth auth_type=userpass password1
username1

[mytrunk]
type=aor contact=sip:89.1.23.217:5060

[mytrunk]
type=endpoint transport=simpletrans context=bucle-weasels disallow=all allow=ulaw outbound_auth=mytrunk aors=mytrunk

[mytrunk]
type=identify endpoint=mytrunk match