Mar 14 11:53:32 r5dev-osipstest ./opensips[27999]: Into invite method. Mar 14 11:53:32 r5dev-osipstest ./opensips[27999]: 185511@10.250.5.3 Mar 14 11:53:32 r5dev-osipstest ./opensips[27999]: Jumped to Outbound. Mar 14 11:53:32 r5dev-osipstest ./opensips[27999]: FS tries to call PBX! 185511@10.250.5.3:5080 via 10.250.5.50 Mar 14 11:53:32 r5dev-osipstest ./opensips[27999]: FS tries to call PBX! 185511@192.168.1.30:5060 via 10.250.5.50 Mar 14 11:53:32 r5dev-osipstest ./opensips[27999]: Offer rtpp Outbound. Mar 14 11:53:32 r5dev-osipstest ./opensips[27999]: new branch at sip:185511@192.168.1.30:5060 Mar 14 11:53:32 r5dev-osipstest ./opensips[27993]: ERROR:tm:send_ack: failed to generate a HBH ACK if key HFs in reply missing Mar 14 11:53:32 r5dev-osipstest ./opensips[27993]: ERROR:tm:reply_received: failed to send ACK (local=no) Mar 14 11:53:32 r5dev-osipstest ./opensips[27993]: incoming reply Mar 14 11:53:33 r5dev-osipstest ./opensips[28004]: Into cancel method line 265.