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I wanted answer some of the questions that have been asked, and hopefully make the issue more clear. At this time it appears that at least part of the issue is the internet download bandwith spiking. See below...
1) The customer states that inside calls are fine.
2) The call quality issue is only effecting the inside(customer) side of the conversation. The remote user has no issues hearing the customer. Some users report that they have had only minor breaks in the call quality, while others have reported more severe breaks in the call.
3) We haven't checked the latency between the itsp and the sbc yet. The itsp support was unavailable last night, but we can check that if needed.
4) The customer is on a 5 MB EIA circuit from
windstream that provides 5MB up and down. The ISP stated the signals between the Central Office and the Telco's Equipment at the customer site were good. However they sent a bandwith report with shows that the download speed is spiking for extended periods of time from at least 3 to 4 MB. We will be looking at what might be spiking this.
5) The issue transferring calls, only started yesterday (a couple of days after the call quality issue and about 3 days after the internet upgrade from 3Mb to 5Mb). It only started after we rebooted the phone switch, ingate, voice poe switch, etc. I had pushed the profiles to the phones at least twice to resolve some issues such as incorrect date/time. Everything looked good until the customer called and stated that on one call they could transfer fine, then on another the could not.
what you are not providing is the lyncgpin in your problem... if you have a quality issue, what xodecs are negotiated and what is the latency between the sbc and the itsp? do you have the service quality module running in the ingate?
On Jul 28, 2011 6:59 PM, "Michael Picher" <[email protected]> wrote:
> You're running on some pretty old software...
>
> Calls in and out are not anchored on the server so the issue is either
> phone, network, internet or ISP related. Media should be flowing directly
> from Ingate to phone. Check for network loops or just enable spanning tree.
>
> You may want to get things updated a bit... First update to sipXecs 4.0.5
> and then on to 4.21 and 4.4.0. Make sure you are on Polycom 3.2.4b firmware
> with 4.3.0 firmware. Check the wiki (wiki.sipfoundry.org) for help.
>
> I'd also thing about getting the Ingate up to date as well. Their support /
> maint contracts are pretty reasonable.
>
> Mike
> On Jul 28, 2011 6:39 PM, <[email protected]> wrote:
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