Hi @all, I've successfully installed the software and figured out how to automatically call a sip phone and playback a pre-recorded message when the handset is picked-up. Now I've seen that my Grandstream GXP1625 can automatically turn on the speaker phone to answer incoming calls based on the SIP info header. >From what I understood a "Call-Info: answer-after=0" header need to be send to request auto answering. Now I wonder if the pjsua command line tool supports sending this special header and how it need to be configured. Unfortunately this feature seems not be documented very well and I haven't found sufficent information to understand it. I would appreaciate if someone could shed some light on this feature and explain to me how it need to be set-up. Thank you in advance! Regards Juergen