[VoiceOps] Appearance of an International call

Kidd Filby kiddfilby at gmail.com
Wed Jun 15 17:33:18 EDT 2016

Hey Pete;

Thanks for the chime-in.  That must have been a fun one to chase as well.

Well, I cannot say... for certain, it is an iOS problem or directly related
to the iPhone.  Here is what I know for sure, from testing.

   1. We have only gotten complaints related to users of iPhones
   2. I have made test calls to Android devices and have not had the
   problem occur
   1. We have made numerous test calls to (4) different Android models of
      Verizon phones w/o any issue
      3. However, I have also made calls to Verizon iPhones that did not
      reproduce the problem
      3. We have troubles reported to us relating to both Verizon and AT&T
   wireless end users
      1. Have all been end users with iPhones
      4. As stated earlier, when the VZN Engineer deactivated VoLTE on the
   iPhone, the information displayed correctly

The reason why its not as wide spread, I think, is that people mostly call
people they know and the contact list on their cell phone overrides the
presentation and a lot more calls are wireless to wireless today (even on
the same network) that were landline related in the past.

It's definitely a strange one.



On Wed, Jun 15, 2016 at 2:50 PM, Pete Mundy <pete at fiberphone.co.nz> wrote:

> Do you think this is an iPhone-specific issue? Ie a fault in iOS and the
> way it's dealing with decoding the caller ID?
> We saw similar issues with txt messages from other mobile users inside our
> country (New Zealand) way back when the iPhone first hit the market.
> Basically txt messages would be shown as coming from the full number
> including country code prefix (+64) and not matched against the number
> already in the contacts list. Users would then add the new number to the
> existing contact, then when they tried to txt or call the number back the
> carrier would refuse the transmission. It all came right once Apple
> cottoned on to the problem and a fix was included in an iOS update
> (although it took like 2 months for that to occur, meanwhile pretty much
> everyone with an iPhone in NZ experienced the hassle of it).
> I just wonder if it might be worth testing the same scenario from an
> Android phone to see if it works. That may help discount the carriers and
> upstreams as being part of the equation and give you more credence when
> trying to escalate the issue to Apple (and good luck with that too!).
> Pete
> Ps, yes I also giggled at the Comic Sans on the first posting too ;)
> > On 16/06/2016, at 6:54 am, Carlos Alvarez <caalvarez at gmail.com> wrote:
> >
> > That sort of conversation was the intent of my original message. We have
> seen odd things happen from one carrier to another when we don't send the
> whole presentation. The carriers will accept a 10 digit caller ID but then
> something strange will happen at random. So that's just one of many things
> that could be going on.
> >
> > Sent from my iPhone
> >
> >> On Jun 15, 2016, at 10:57 AM, Alex Balashov <abalashov at evaristesys.com>
> wrote:
> >>
> >> Comic sans isn't a fashion accessory in my part of town.
> >>
> >> I figure this is an issue of presentation and locality setting
> transmission. Don't GSM/3GPP and LTE require all numbers to be internally
> represented as fully-qualified E.164 anyhow? What gives a number "local"
> presentation is a setting on the phone that says "I'm within this country
> code", and I imagine that whether this is honoured can be modulated via
> some calling number presentation setting in the signalling message.
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Kidd Filby
661.557.5640 (C)
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