Hi I am finding some PJ Media quality issue. Need your suggestion to overcome this. The scenario is as below. I have PJSIP UA one side. One intermediate SIP+RTP proxy (Kamailio 3.1.5 and RTP Proxy 1.2.1). I have another main proxy doing registrar, accounting as well as acting as a gateway between PSTN, GSM and IP domains. Now if I make a call from PJSIPUA to a mobile phone, I am finding audio at PJSIP UA is good. However media at mobile phone is bad. Did anybody face this issue anytime? To narrow down the problem, I removed intermediate SIP+RTP proxy. So now the scenario is PJSIP UA --> Main proxy --> Mobile phone. With this setup I find audio quality is god bothway. If somebody has observed this issue anytime, please help me to solve this issue. Thank you in advance Austin

Hi List Please respond. -Austin On Tue, Oct 11, 2011 at 6:12 AM, Austin Einter <austin.einter@gmail.com>wrote: > Hi > I am finding some PJ Media quality issue. Need your suggestion to overcome > this. > The scenario is as below. > > I have PJSIP UA one side. > One intermediate SIP+RTP proxy (Kamailio 3.1.5 and RTP Proxy 1.2.1). > I have another main proxy doing registrar, accounting as well as acting as > a gateway between PSTN, GSM and IP domains. > > Now if I make a call from PJSIPUA to a mobile phone, I am finding audio at > PJSIP UA is good. However media at mobile phone is bad. > > Did anybody face this issue anytime? > > To narrow down the problem, I removed intermediate SIP+RTP proxy. > So now the scenario is PJSIP UA --> Main proxy --> Mobile phone. > > With this setup I find audio quality is god bothway. > > If somebody has observed this issue anytime, please help me to solve this > issue. > > Thank you in advance > Austin > >

 Hi
 I am finding some PJ Media quality issue. Need your suggestion to
 overcome this.
 The scenario is as below.
 I have PJSIP UA one side.
 One intermediate SIP+RTP proxy (Kamailio 3.1.5 and RTP Proxy 1.2.1).
 I have another main proxy doing registrar, accounting as well as
 acting as a gateway between PSTN, GSM and IP domains.
 Now if I make a call from PJSIPUA to a  mobile phone, I am finding
 audio at PJSIP UA is good. However media at mobile phone is bad.
 Did anybody face this issue anytime?
 To narrow down the problem, I removed intermediate SIP+RTP proxy.
 So now the scenario is PJSIP UA --> Main proxy --> Mobile phone.
 With this setup I find audio quality is god bothway.
 If somebody has observed this issue anytime, please help me to
 solve this issue.
 Thank you in advance
 Austin

On 10/11/2011 04:42 PM, Austin Einter wrote: > Hi List > Please respond. > -Austin > > On Tue, Oct 11, 2011 at 6:12 AM, Austin Einter > <austin.einter@gmail.com <mailto:austin.einter@gmail.com>> wrote: > > Hi > I am finding some PJ Media quality issue. Need your suggestion to > overcome this. > The scenario is as below. > I have PJSIP UA one side. > One intermediate SIP+RTP proxy (Kamailio 3.1.5 and RTP Proxy 1.2.1). > I have another main proxy doing registrar, accounting as well as > acting as a gateway between PSTN, GSM and IP domains. > Now if I make a call from PJSIPUA to a mobile phone, I am finding > audio at PJSIP UA is good. However media at mobile phone is bad. > Did anybody face this issue anytime? > To narrow down the problem, I removed intermediate SIP+RTP proxy. > So now the scenario is PJSIP UA --> Main proxy --> Mobile phone. > With this setup I find audio quality is god bothway. > If somebody has observed this issue anytime, please help me to > solve this issue. > Thank you in advance > Austin > > > > > _______________________________________________ > Visit our blog: http://blog.pjsip.org > > pjsip mailing list > pjsip@lists.pjsip.org > http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org Without thinking too much, I'd say the problem is with the proxy (if any) if it works fine without it now. Try to verify this by capturing the RTP streams on both sides using Wireshark. Wireshark allows you to play captured RTP streams. Regards -- Dipl.-Ing. (FH) Andreas Wehrmann Software Development -------------------------------------------------------------- Center Communication Systems GmbH A-1210 Wien, Ignaz-Köck-Straße 19 Sitz in Wien FN 796 88p, Firmenbuchgericht Wien www.centersystems.com Tel.: +43 (0) 190 199 - 3616 Mobile: +43 (0) 664 884 75916 Fax: +43 (0) 190 199 - 2110 E-Mail: a.wehrmann@centersystems.com