SIP Trunks.
3300 MXeIII Release level: 8.0 SP3 PR3
I have an issue with a Chicago customer.
Their area code is 312. The international dial code for the Netherlands is +31
When they call out, some cell phones report the call as coming from the Netherlands so they think it's a spam call and ignore it.
Of course the carrier says that we are causing the problem.
I can't think of anything that I would be doing that may cause the carrier to flag it as a call from the Netherlands.
Any thoughts?
Ralph