[cisco-voip] strange shared line behavior on 88XX phones

[Erick Wellnitz]

Finally had the behavior repeat.

Found in the console logs and the CM traces that a couple of the phones
are, for some reason, delaying their 487 - Request Cancelled response for
up to 6 seconds from when the call is answered.

Sent to TAC to see what they have to say.

On Wed, Sep 30, 2015 at 11:09 AM, Lelio Fulgenzi <lelio at uoguelph.ca> wrote:

> turns out it is written.
>
>
> http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/7_1_2/ccmsys/accm-712-cm/a03dn.html#wp1100362
>
> Shared Line Restrictions
>
> The following restrictions apply to shared lines:
>
> <snip>
> •Do not configure shared-line appearances on the primary lines of the
> phones; for example, if two phones have a shared-line appearance, only one
> of the phones should have the primary line configured as shared (the other
> phone should have the secondary line configured as shared).
> <snip>
>
>
> In version 10 it becomes a suggestion though. Interesting.
>
>
>
> http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/10_0_1/ccmsys/CUCM_BK_SE5FCFB6_00_cucm-system-guide-100/CUCM_BK_SE5FCFB6_00_cucm-system-guide-100_chapter_010001.html#CUCM_RF_S05975F9_00
>
>
> Shared Line Suggestions
> Do not configure shared line appearances on primary lines as certain
> feature interactions are impacted. Settings of the primary line are
> applicable to the shared line. For example: if two phones have a
> shared-line appearance, only one phone should have the primary line
> configured as shared to avoid unexplained post configuration behavior.
>
> ---
> Lelio Fulgenzi, B.A.
> Senior Analyst, Network Infrastructure
> Computing and Communications Services (CCS)
> University of Guelph
>
> 519‐824‐4120 Ext 56354
> lelio at uoguelph.ca
> www.uoguelph.ca/ccs
> Room 037, Animal Science and Nutrition Building
> Guelph, Ontario, N1G 2W1
>
> ------------------------------
> *From: *"Erick Wellnitz" <ewellnitzvoip at gmail.com>
> *To: *"Lelio Fulgenzi" <lelio at uoguelph.ca>
> *Cc: *cisco-voip at puck.nether.net
> *Sent: *Wednesday, September 30, 2015 12:20:51 PM
> *Subject: *Re: [cisco-voip] strange shared line behavior on 88XX phones
>
> It is on a fair number of them.  They didn't have the issue on 8.6.2 with
> the same firmware.
>
> We're waiting on the next occurrence to gather traces.
>
> On Wed, Sep 30, 2015 at 10:04 AM, Lelio Fulgenzi <lelio at uoguelph.ca>
> wrote:
>
>>
>> I recall there being an (un)written rule where shared lines should not be
>> the primary line. It could cause issues.
>>
>> Are the shared lines the first DN on the phone?
>>
>> Lelio
>>
>> ---
>> Lelio Fulgenzi, B.A.
>> Senior Analyst, Network Infrastructure
>> Computing and Communications Services (CCS)
>> University of Guelph
>>
>> 519‐824‐4120 Ext 56354
>> lelio at uoguelph.ca
>> www.uoguelph.ca/ccs
>> Room 037, Animal Science and Nutrition Building
>> Guelph, Ontario, N1G 2W1
>>
>> ------------------------------
>> *From: *"Erick Wellnitz" <ewellnitzvoip at gmail.com>
>> *To: *cisco-voip at puck.nether.net
>> *Sent: *Wednesday, September 30, 2015 12:00:20 PM
>> *Subject: *[cisco-voip] strange shared line behavior on 88XX phones
>>
>> anyone seen issues with the 88xx phones on firmware 10.3(1) and CUCM
>> 10.5.2 SU1 where the line starts ringing on some phones right away and some
>> start ringing up to 15 seconds later.  Some also experience ringing after
>> the call is answered up to 15 seconds after answered.
>>
>> 88xx phones are the only ones exhibiting this behavior.  Another
>> consideration is that this shared line is on 17 devices.
>>
>> Thanks for any insight!
>>
>> _______________________________________________
>> cisco-voip mailing list
>> cisco-voip at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>
>>
>
>
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/cisco-voip/attachments/20150930/a7a8e933/attachment.html>