there are 2 things here... 1. your patch level for sipx. 2. your firmware version on polycom.
all things being equal: I am on todays stable release I am running firmware 3.2.5 the stutter does that it happen, even for remote users on a lot on or not. On Jun 21, 2011 4:57 PM, "Alex Brown" <[email protected]> wrote: > On 6/21/2011 4:33 PM, Tony Graziano wrote: >> On Tue, Jun 21, 2011 at 4:28 PM, Alex Brown<[email protected]> wrote: >>> >>> 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. >>> >> Does the LAN have qos prioritization and is it on a separate vlan from >> the data network (best practice). > > Yes, the LAN has QoS prioritization and it is on a separate VLAN from > the data network. > >>> 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 don't see these issues, but I have qos and voip sits on own vlan. >> I'd consider going back to 3.2.5 firmware. I don't have the stutter at >> the beginning of the VM but I'm running on today's stable release. > > When you wrote "I'd consider going back to 3.2.5 firmware," did you mean > going back to 3.1.3RevC? That's what I was on before 3.2.4. I can also > try 3.2.5 if you recommend that over 3.1.3RevC. > >>> >>> 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? >>> >> I think before I'd consider that level of data collection, I'd make >> sure the voip was insulated from everything else (vlan/qos). >>> > > OK. The VOIP is insulated from everything else by VLAN and QoS. > > _______________________________________________ > sipx-users mailing list > [email protected] > List Archive: http://list.sipfoundry.org/archive/sipx-users/
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