Hello, maybe the rtp_media_server module might be helpful in this regards, function rms_answer() for example. Cheers, Henning -- Henning Westerholt - https://skalatan.de/blog/ Kamailio services - https://gilawa.com<https://gilawa.com/> From: sr-users &lt;sr-users-bounces(a)lists.kamailio.org&gt; On Behalf Of Amit Pal Sent: Monday, October 19, 2020 2:38 PM To: 'Kamailio (SER) - Users Mailing List' &lt;sr-users(a)lists.kamailio.org&gt; Subject: [SR-Users] hold_on_music over P2P call [Kamailio] Hi Team, Pls guide me on following point. :- By using kamailio (P2P call), want to play hold on music during hold call. Shall it be possible without any external media server like (RTPProxy/media proxy). Regards Amit Pal