> Date: Tue, 26 Jan 2010 16:33:16 +0000 > From: bennylp@xxxxxxxxx > To: pjsip at lists.pjsip.org > Subject: Re: Windows XP service pack 3 and outgoing RTP issues. > > On Tue, Jan 26, 2010 at 9:15 AM, Syd Brearley <cherkazoo at live.co.uk> wrote: > > > > Hi, > > > > I have searched the mailing list but could not find any complaints about the > > issue I am facing. > > > > I have tested pjsua command line client compiled using all versions between > > pjsip 1.1 and 1.5.5 and I have the following issue: > > > > When using a certain machine with XP SP3, the outgoing voice is like > > encrypted. > > The issue happens on PSTN end and voip end is clear with all except 1.5.5 > > (out of the box configuration) > > > > First two seconds are clear and then the voice gets broken as if packets are > > delivered in wrong sequence. > > If the voip end counts slowly, the voice on pstn end is clear(counting once > > per 2 seconds). > > However if you speak with natural speed, then the voice gets broken again. > > As long as there is a silence period and you start speaking again, the first > > few seconds are clear. > > > > This only happens with certain machines using XP sp3. But there are other > > machines using XP SP3 without this issue as well. > > > > Also, when this issue happens, Xlite also has the same problem and some voip > > clients (e.g. V Buzzer and Minipax) work successfully. > > > > > > This is not a blocking or network issue because the same versions of > > applications work perfect on other machines in the same network. > > The specs of the machine is quite ok and the issue exists using internel > > sound card as well as USB handsets. > > > > When using 1.5.5 audio on Voip end also has similar issue but with all other > > versions incoming audio is clear. > > > > > > Is this specific to a particular codec being used? Have you tried to > capture the RTP packets and see if there's anything peculiar? And once > you capture it, can you extract the voice payload and see if it's > indeed scrambled? Btw you can use pcaputil from our samples collection > to extract voice payload (with any codecs that pjmedia supports) from > PCAP file to WAV file. > Hi Benny, Thanks for getting back. It is the same case with other codecs. however I have not tried packet capture. I will get back tih the details once I have performed the tests. Regards Syd _________________________________________________________________ Tell us your greatest, weirdest and funniest Hotmail stories http://clk.atdmt.com/UKM/go/195013117/direct/01/ -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20100126/bd5a1adb/attachment.html>
