Hi When conversation of the call is being saved to a file (record_session) audio tempo in such recording is like slowed down despite that call conversations lacks this issue. Above happens when call comes from asterisk. (Asterisk-->FS-->UA) WRONG If the call comes from IP-Phone, recording is normal. (UA-->FS-->Asterisk) OK I've tried multiple options for example: <action application="export" data="rtp_rewrite_timestamps=true"/> <action application="set" data="bridge_generate_comfort_noise=true"/> And setting <param name="rtp-timer-name" value="none"/> in the sofia profiles didn't solved the problem either. Global Codecs definition. <X-PRE-PROCESS cmd="set" data="global_codec_prefs=G7221@32000h,G7221@16000h,G722,PCMU@20i,PCMA@20i,GSM"/> <X-PRE-PROCESS cmd="set" data="outbound_codec_prefs=PCMU@20i,PCMA@20i,GSM"/> Is this known issue? -- Piotr Sobolewski sobolewski@gmail.com