[c-nsp] Cisco Wireless VOIP IP phone issue

[Scott Voll]

I'm trying to remember everything from last year, some of it depends on
wireless power, AP placement, Speed in which the user is walking, what
objects might interfere etc.

I think they also talk about some specific setting that you want to set on
the wireless to force faster roaming.  Wish I could find that PP.

Scott


On Thu, Mar 28, 2013 at 12:16 PM, Zach Hill <zach.reborn at gmail.com> wrote:

> I'll do another coverage analyses though just to be sure and crank the
> access-points down a bit.
>
>
> On Thu, Mar 28, 2013 at 2:51 PM, Zach Hill <zach.reborn at gmail.com> wrote:
>
>> Sorry, I said -65dB but meant -55dB in looking at the graphing I did just
>> the other week.
>>
>> Thanks,
>>
>> -Zach
>>
>>
>> On Thu, Mar 28, 2013 at 2:49 PM, Zach Hill <zach.reborn at gmail.com> wrote:
>>
>>> Sorry but this isn't a wireless coverage issue. Doing wireless mapping
>>> it nver drops below -65dB walking throughout the entire building. Laptops
>>> and various other wirless network devices poll often enough to switch
>>> between the access points as to never lose full bars. The Cisco IP Phones
>>> are the only devices with issues.
>>>
>>> Based on my findings the IP Phones do not try and switch to the
>>> nearest/strongest access-point often enough.
>>>
>>>
>>> On Thu, Mar 28, 2013 at 2:40 PM, Scott Voll <svoll.voip at gmail.com>wrote:
>>>
>>>> This is not a phone issue, but a Wireless network design issue.
>>>>
>>>> What are you using for wireless?
>>>>
>>>> What does your coverage look like?
>>>>
>>>> There needs to be a very good overlap in order to have good voice
>>>> coverage.
>>>>
>>>> There was a great wireless class at cisco live about voice design on
>>>> your wireless network.
>>>>
>>>> Scott
>>>>
>>>>
>>>> On Thu, Mar 28, 2013 at 10:09 AM, Zach Hill <zach.reborn at gmail.com>wrote:
>>>>
>>>>> Does anyone know if there is a way to make a IP Phone update it's
>>>>> access-point more often? We're having an issue where traveling between
>>>>> two
>>>>> access points while on a call doesn't seem to poll for the strongest
>>>>> wireless signal often enough. The symptoms include bi-directional voice
>>>>> issues due to the low signal strength.
>>>>>
>>>>> It seems the phones attempt to stay with the access-point they were on
>>>>> when
>>>>> the call was made until it cannot reach it at all even at huge signal
>>>>> loss.
>>>>>
>>>>> Thanks,
>>>>>
>>>>> -Zach
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>>>>>
>>>>
>>>>
>>>
>>
>