On 6/12/2011 8:12 PM, Tony Graziano wrote: > > Content-Type: text/plain; > charset="utf-8" > Content-Transfer-Encoding: 8bit > Organization: SipXecs Forum > In-Reply-To:<[email protected]> > X-FUDforum: 08063afcdd00a6e76393c5b9527381e8<60662> > Message-ID:<[email protected]> > > > > Network (most likely). > > > 2. Describe your connectivity better. Are you using sip > trunks?
Well, I do use SIP trunks for the long distance calls but the local calls are routed through an AudioCodes MP-118 Gateway. > It is most likely a network traffic issue. I suspect you are > using sip trunks. It is also likely you do not have adequate > traffic shaping/prioritization measures in place at your > firewall. I believe there is adequate traffic shaping configured on the Cisco router. The main problem is that this issue (callers hearing glitches or dropped syllables from recipients but recipients hearing callers just fine) occurs even between phones on the same internal LAN. So, the router and the AudioCodes Gateway are not always a part of the scenario when users experience this problem. > > You can hear them (download) but they have problems hearing > you (upload) which is "typical" with cable modem/dsl and > assymetric internet connections unless shaping is properly > addressed. I recently read another thread about a user hearing a stutter during voicemail IVR playback. One of my users has experienced that same issue and you indicated that it might be a problem with the Polycom firmware. I'm currently running the version 3.2.4 but I have deactivated that and reactivated 3.1.3RevC so hopefully that will help to resolve the issue. I have QoS configured on all of the switches and a user has told me that the call quality on Skype is better than the quality on the Polycom phones so I'm hoping/thinking that it may be the firmware. I know there are many tests I can run but what are some of the best tools/tests to run in order to track down the cause of an issue like this? Should I look into setting up an RTCP-XR collector for Polycom Productivity Suite? We don't have the Polycom Productivity Suite but should we get it? Will one suite license cover all of the 64 phones we have? Thanks again for your help. _______________________________________________ sipx-users mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-users/
