[cisco-voip] PSA: Hunt Groups and Alerting Names

[Anthony Holloway]

Update: I tried to use this solution on an 11.5(1)SU6 system, and it didn't
work.  This is not great, but neither is the original issue.

When I looked at the Call-Info header, it was different that the 11.5(1)SU5
system I tested on.

The %22 was not in the header, rather it looked like this:

huntpiloturi="Your Hunt Pilot Name<sip:\+16125551212 at 10.1.1.10>";

And in order to correct it to look like this (placement of double quotes):

huntpiloturi="Your Hunt Pilot Name"<sip:\+16125551212 at 10.1.1.10>;

I had to adjust the gsub find/replace with this:

local new_call_info = string.gsub(old_call_info,
"huntpiloturi=\"(.*)<(.*)>\";", "huntpiloturi=\"%1\"<%2>;")

On Thu, Aug 1, 2019 at 11:40 AM Anthony Holloway <
avholloway+cisco-voip at gmail.com> wrote:

> I was configuring some new stuff for a customer recently, and as I was
> making test calls, I noticed the 7800/8800 series phones were not showing
> the Hunt Pilot Alerting Name like I'm used to.
>
>
>
> I found a defect (CSCvn39109
> <https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvn39109>) which
> basically says that CUCM 11.5(1)SU5+ was updated to change the way it
> presents the Hunt Pilot name to the phone, and the phone firmware has not
> been updated to parse it.
>
>
>
> I implemented a SIP Normalization script on the SIP Profile applied to the
> phones, which rolls back the format to pre- CUCM 11.5(1)SU5.
>
>
>
> That Lua script looks like this:
>
>
>
> M = {}
>
>
>
> local function hunt_uri_rollback(msg)
>
>
>
>     local old_call_info = msg:getHeader("Call-Info")
>
>     local new_call_info = string.gsub(old_call_info,
> "huntpiloturi=\"%%22(.*)%%22(.*)\";", "huntpiloturi=\"%1\"%2;")
>
>     msg:modifyHeader("Call-Info", new_call_info)
>
>
>
> end
>
>
>
> M.outbound_INVITE = hunt_uri_rollback
>
> M.outbound_UPDATE = hunt_uri_rollback
>
>
>
> return M
>
>
>
> Again, you apply it to a SIP Profile, which you then apply to the phone.
> Then restart the phone.
>
>
> The Pre-Lua script Call-Info header looks like this:
>
>
> Call-Info: <urn:x-cisco-remotecc:callinfo>; security= Unknown;
> orientation= from; gci= 4-166949; *huntpiloturi="%22Your Hunt Pilot
> Name%22<sip:\+16125551212 at 10.1.1.10 <16125551212 at 10.1.1.10>>";* isVoip;
> call-instance= 1
>
>
> The Post-Lua script Call-Info header looks like this:
>
>
> Call-Info: <urn:x-cisco-remotecc:callinfo>; security= Unknown;
> orientation= from; gci= 4-166949; *huntpiloturi="Your Hunt Pilot
> Name"<sip:\+16125551212 at 10.1.1.10 <16125551212 at 10.1.1.10>>;* isVoip;
> call-instance= 1
>
>
> Seeing the alerting name on the phone is a really useful feature in my
> opinion, and so I hope this helps you out until Cisco fixes this with a
> software patch.
>
>
> PS Make sure you have the CM Advanced Service Parameter set to True
> (default): Display Hunt Pilot Name or DN for Hunt Group Calls When
> Alerting.
>
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