[VoiceOps] Polycom ghost ringing

[PE]

After discussing your Hunt Group theory we may have some examples that
occurred this way. We will try to validate and see if there is any
commonality there.

What types of switches are your customers using?




On Fri, Jun 3, 2011 at 3:59 PM, PE <peeip989 at gmail.com> wrote:

> Typically Linksys (SRW or SFE), but we are also finding that customers plug
> in other various stuff (which appears to be the source of the spanning
> tree).
>
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>
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> On Fri, Jun 3, 2011 at 3:56 PM, Brad Anouar <Brad at broadcore.com> wrote:
>
>>  Hi Pete,
>>
>>
>>
>> According to the only capture we have, you are right. Neither in-band nor
>> out-of-band traffic that would cause such behavior was present. I’m going to
>> go back and check to see if there was any STP  activity during the time of
>> the incident. It could’ve been easily ignored since we only have one
>> capture. I will also check to find out if the affected clients are all using
>> the same type of switch. I will then post the findings. What type of switch
>> do your affected customers use?
>>
>>
>>
>> Regards,
>>
>> *Brad Anouar** ** *| Anywhere (310) 360-2028 | Corporate (800) 942-4700 |
>> www.broadcore.com
>>
>>
>>
>> *From:* voiceops-bounces at voiceops.org [mailto:
>> voiceops-bounces at voiceops.org] *On Behalf Of *PE
>> *Sent:* Friday, June 03, 2011 12:27 PM
>> *To:* voiceops at voiceops.org
>> *Subject:* Re: [VoiceOps] Polycom ghost ringing
>>
>>
>>
>> @Christian, no, I mean that while the user is on the phone they hear the
>> far end party mixed with ringback tone in their ear.
>>
>>
>>
>> @Brad, we have not correlated it with hunt groups or even on incoming
>> calls. We've only been able to capture it a couple of times and the times we
>> have seen it, it has coincided with a slew of spanning tree activity on the
>> LAN. Could be coincidence, but I am thinking there is an
>> indirect correlation. Clearly the spanning tree is not SIP (and we are not
>> seeing a 180 Ringing or other message that might confuse the phone) and is
>> not inband ringback in RTP, but I am thinking it might be causing the phone
>> to to wig out, though this is pure speculation. We also have the same
>> concerns about file structure.
>>
>>
>>
>>
>>
>> On Fri, Jun 3, 2011 at 3:00 PM, Brad Anouar <Brad at broadcore.com> wrote:
>>
>> We’ve had the same problem with FW version 3.3.1. We’ve noticed that it
>> only happens when the call is terminated through a hunt group. There was
>> some sort of a reINVITE that triggered a weird ring back tone in the middle
>> of the call. Polycom support has acknowledged the issue and suggested to
>> downgrade to 3.2.4, but as you probably know, the structure of the
>> configuration files is different in the pre 3.3.x FW. The next FW version is
>> scheduled to be released in July. We are still trying to come up with a work
>> around.
>>
>>
>>
>> *Brad Anouar** ** *| Anywhere (310) 360-2028 | Corporate (800) 942-4700 |
>> www.broadcore.com
>>
>>
>>
>> *From:* voiceops-bounces at voiceops.org [mailto:
>> voiceops-bounces at voiceops.org] *On Behalf Of *Pete E
>> *Sent:* Friday, June 03, 2011 10:54 AM
>>
>>
>> *To:* voiceops at voiceops.org
>> *Subject:* [VoiceOps] Polycom ghost ringing
>>
>>
>>
>> Back in January there were a couple of posts related to "ghost ringing" on
>> Polycom phones. At the time the workaround seemed to be to downgrade to
>> v3.3.0 (we're on 3.3.1). Looking at the release notes on 3.3.1 it looks like
>> the .0 release was pretty buggy and therefore we'd rather not downgrade to
>> it. Polycom has not acknowledged (to us) that they even know about the
>> problem. Does anyone know if any headway has been made in actually fixing
>> the issue?
>>
>>
>>
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