[VoiceOps] Misconfigured e.164 addresses in From: field

[Carlos Alvarez]

Common enough that we have a huge pre-processing section at the beginning
of every call to normalize the various stupid ways carriers might send the
info.  Something like six variables covering all the ways they do it wrong.


On Wed, Jul 5, 2017 at 2:29 PM, Zilk, David <David.Zilk at cdk.com> wrote:

> How common is it that SIP received from a carrier would have a
> misconfigured e.164 address in the From: field?
>
>
>
> We are seeing calls from various US numbers appearing with a leading ‘+’,
> but no ‘1’ country code.  Therefore they appear to be originating from a
> foreign caller.  An example would be:
>
>
>
> From: sip:+208488xxxx at aaa.bb.cc.dd:5060;user=phone
>
>
>
> Which would appear to be from Egypt (country code: 20) but is really from
> Boise, Idaho (NPA: 208)
>
>
>
> We are seeing this from at least one of our carriers. Do we need to just
> live with this, or should it be something that we try to get fixed? It
> doesn’t impact routing of calls, but it messes up our statistics.
>
>
>
> ---
>
>
>
> *David Zilk   *
>
> Senior VoIP Engineer
>
> Network Solutions
>
>
>
> *CDK Global, LLC*
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>
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