ACK do t_relay()

openser:~/configs#
 1(28584) INFO:mi_fifo:mi_child_init(1): extra fifo listener processes created
 1(28584) +41215509999=+41216939262 Init. INVITE sip:+41216939262@212.249.15.3 128.179.67.81=212.249.15.3 (745-236 bytes)
 1(28584) +41215509999=+41216939262 ==> OUTGOING CALL to +41216939262
 6(28590) +41215509999=+41216939262 100 (trying -- ..) for INVITE 212.190.89.137=195.129.125.73 (622 bytes)
 7(28591) +41215509999=+41216939262 183 (Session Pr..) for INVITE 212.190.89.137=195.129.125.73 (978-216 bytes)
 4(28588) +41215509999=+41216939262 Trans. CANCEL 128.179.67.81=212.249.15.3 (433 bytes)
 5(28589) +41215509999=+41216939262 200 (canceling) for CANCEL 212.190.89.137=195.129.125.73 (636 bytes)
 6(28590) +41215509999=+41216939262 487 (Request Ca..) for INVITE 212.190.89.137=195.129.125.73 (450 bytes)
 3(28587) +41215509999=+41216939262 Trans. ACK 128.179.67.81=212.249.15.3 (467 bytes)
 4(28588) +41215509999=+41216939262 Trans. CANCEL 128.179.67.81=212.249.15.3 (451 bytes)
 8(28592) +41215509999=+41216939262 487 (Request Ca..) for INVITE 212.190.89.137=195.129.125.73 (450 bytes)
 6(28590) +41215509999=+41216939262 487 (Request Ca..) for INVITE 212.190.89.137=195.129.125.73 (450 bytes)
openser:~/configs#

ACK do not t_relay()

openser:~/configs#
 2(28611) +41215509999=+41216939262 Init. INVITE sip:+41216939262@212.249.15.3 128.179.67.81=212.249.15.3 (745-236 bytes)
 2(28611) +41215509999=+41216939262 ==> OUTGOING CALL to +41216939262
 6(28615) +41215509999=+41216939262 100 (trying fast) for INVITE 212.190.89.137=195.129.125.73 (587 bytes)
 7(28616) +41215509999=+41216939262 100 (trying -- ..) for INVITE 212.190.89.137=195.129.125.73 (623 bytes)
 8(28617) +41215509999=+41216939262 183 (Session Pr..) for INVITE 212.190.89.137=195.129.125.73 (979-217 bytes)
 4(28613) +41215509999=+41216939262 Trans. CANCEL 128.179.67.81=212.249.15.3 (433 bytes)
 6(28615) +41215509999=+41216939262 200 (canceling) for CANCEL 212.190.89.137=195.129.125.73 (637 bytes)
 7(28616) +41215509999=+41216939262 487 (Request Ca..) for INVITE 212.190.89.137=195.129.125.73 (450 bytes)
 3(28612) +41215509999=+41216939262 Trans. ACK 128.179.67.81=212.249.15.3 (466 bytes)
 4(28613) +41215509999=+41216939262 Trans. CANCEL 128.179.67.81=212.249.15.3 (450 bytes)
 5(28614) +41215509999=+41216939262 487 (Request Ca..) for INVITE 212.190.89.137=195.129.125.73 (450 bytes)
 8(28617) +41215509999=+41216939262 487 (Request Ca..) for INVITE 212.190.89.137=195.129.125.73 (450 bytes)
 6(28615) +41215509999=+41216939262 487 (Request Ca..) for INVITE 212.190.89.137=195.129.125.73 (450 bytes)
 8(28617) +41215509999=+41216939262 487 (Request Ca..) for INVITE 212.190.89.137=195.129.125.73 (450 bytes)
 5(28614) +41215509999=+41216939262 487 (Request Ca..) for INVITE 212.190.89.137=195.129.125.73 (450 bytes)
 8(28617) +41215509999=+41216939262 487 (Request Ca..) for INVITE 212.190.89.137=195.129.125.73 (450 bytes)
 5(28614) +41215509999=+41216939262 487 (Request Ca..) for INVITE 212.190.89.137=195.129.125.73 (450 bytes)
 8(28617) +41215509999=+41216939262 487 (Request Ca..) for INVITE 212.190.89.137=195.129.125.73 (450 bytes)
openser:~/configs#