private/Update-OnlinePhoneNumber.ps1

function Update-OnlinePhoneNumber {
    Param ([String]$ObjectId, [String]$PstnNumber)
    try {
        Write-OutputProxy " Try Setting OnlinePhoneNumber... "
        $number = Get-CsOnlineTelephoneNumber -TelephoneNumber $PstnNumber
        if ($number -eq $null) {
            Write-OutputProxy "[Failed]"
            Write-OutputProxy " Number not found."
            return $false
        }
        $location = $number.CityCode -Split "-" | Select-Object -Skip 1 -First 1
        Set-MsolUser -ObjectId $ObjectId -UsageLocation $location
        Start-Sleep -Seconds 5
        Sync-CsOnlineApplicationInstance -ObjectId $ObjectId
        Set-CsOnlineVoiceApplicationInstance -Identity $ObjectId -TelephoneNumber $PstnNumber -Force | Out-Null
        return $true
    } catch {
        Write-OutputProxy "[Failed]"
        Write-OutputProxy " $($_.Exception)"
        return $false
    }
}

# SIG # Begin signature block
# MIINMwYJKoZIhvcNAQcCoIINJDCCDSACAQExCzAJBgUrDgMCGgUAMGkGCisGAQQB
# gjcCAQSgWzBZMDQGCisGAQQBgjcCAR4wJgIDAQAABBAfzDtgWUsITrck0sYpfvNR
# AgEAAgEAAgEAAgEAAgEAMCEwCQYFKw4DAhoFAAQUaJWKghKInHzZsTcQITYIEZK4
# 3RmgggpxMIIFGjCCBAKgAwIBAgIQAZyhpG3mRP4nVXpkMz8jhDANBgkqhkiG9w0B
# AQsFADB2MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYD
# VQQLExB3d3cuZGlnaWNlcnQuY29tMTUwMwYDVQQDEyxEaWdpQ2VydCBTSEEyIEhp
# Z2ggQXNzdXJhbmNlIENvZGUgU2lnbmluZyBDQTAeFw0xOTA1MjEwMDAwMDBaFw0y
# MjA1MjUxMjAwMDBaMFkxCzAJBgNVBAYTAkNIMRAwDgYDVQQIDAdaw7xyaWNoMRAw
# DgYDVQQHDAdaw7xyaWNoMRIwEAYDVQQKEwlMdXdhcmUgQUcxEjAQBgNVBAMTCUx1
# d2FyZSBBRzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBANx3Pfx2CKUz
# Ot9W7Scb5rrrnI7m7jOkVG4X2Owj+hJJuEjTA3wIfA/6ay4Wa/Qv+MMdlsv6NRt4
# TgYUMRexmfGgKT7iy4AIebBuyS1lg2gmT/25xGtqO3TPqfhstLNEfcKMaMM2ZEZm
# vCZbiAs3zP1G2oS94DWcCnDCjmPPll30nlOig+ZQGqBuhvNiZ/DGhnYRtrHoRx40
# 7iZjcixgPjkey9IGN6WEUYnhJ712npXTWWUIpiSZ2U475DxLWbEQ7bPHnLsivVNg
# 59f4Jnf8pyqhNelrbGrTeLOuF4JyE5a8Mt2Bc58NCLWT4I9bz8N/7Uk3+RZFtD3O
# Cv4nO2h7mG0CAwEAAaOCAb8wggG7MB8GA1UdIwQYMBaAFGedDyAJDMyKOuWCRnJi
# /PHMkOVAMB0GA1UdDgQWBBQthLJG1fU0R5j9FwY+vNZOT2lf4DAOBgNVHQ8BAf8E
# BAMCB4AwEwYDVR0lBAwwCgYIKwYBBQUHAwMwbQYDVR0fBGYwZDAwoC6gLIYqaHR0
# cDovL2NybDMuZGlnaWNlcnQuY29tL3NoYTItaGEtY3MtZzEuY3JsMDCgLqAshipo
# dHRwOi8vY3JsNC5kaWdpY2VydC5jb20vc2hhMi1oYS1jcy1nMS5jcmwwTAYDVR0g
# BEUwQzA3BglghkgBhv1sAwEwKjAoBggrBgEFBQcCARYcaHR0cHM6Ly93d3cuZGln
# aWNlcnQuY29tL0NQUzAIBgZngQwBBAEwgYgGCCsGAQUFBwEBBHwwejAkBggrBgEF
# BQcwAYYYaHR0cDovL29jc3AuZGlnaWNlcnQuY29tMFIGCCsGAQUFBzAChkZodHRw
# Oi8vY2FjZXJ0cy5kaWdpY2VydC5jb20vRGlnaUNlcnRTSEEySGlnaEFzc3VyYW5j
# ZUNvZGVTaWduaW5nQ0EuY3J0MAwGA1UdEwEB/wQCMAAwDQYJKoZIhvcNAQELBQAD
# ggEBAEl5ctCYW1yDBEcpCwfycyG6vhbpQ8U2wfOQeQI5DmXImLS3spcyXO+Xfn13
# Eh/BL0gXFIi1ybM0wRG/EimU1ag/uQpCtsTRWfq2vJ96LqLf8UxRYGVw+N+IM/8e
# dXAKLexYb/ta4cvByjbJpoiJAJtYN32OclXRD5ph8yehuflmu+rw9TCVuPCa7hkO
# mah1L3n59tGneFGd9ZbWvqknQUAZcuKQrOofTKDb9oZKYjk2JJF7aTcjnHMuDo/X
# t+uHNCmhAuPyEy5Fa+RwdFptPLhudGH3WtNr4+5As2UsBDxm3gHxCiTUMIdnXChj
# 9jLvqhx3P5Rtsl4VZbBcqy/nqo4wggVPMIIEN6ADAgECAhALfhCQPDhJD/ovZ5qH
# oae5MA0GCSqGSIb3DQEBCwUAMGwxCzAJBgNVBAYTAlVTMRUwEwYDVQQKEwxEaWdp
# Q2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5jb20xKzApBgNVBAMTIkRp
# Z2lDZXJ0IEhpZ2ggQXNzdXJhbmNlIEVWIFJvb3QgQ0EwHhcNMTMxMDIyMTIwMDAw
# WhcNMjgxMDIyMTIwMDAwWjB2MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNl
# cnQgSW5jMRkwFwYDVQQLExB3d3cuZGlnaWNlcnQuY29tMTUwMwYDVQQDEyxEaWdp
# Q2VydCBTSEEyIEhpZ2ggQXNzdXJhbmNlIENvZGUgU2lnbmluZyBDQTCCASIwDQYJ
# KoZIhvcNAQEBBQADggEPADCCAQoCggEBALRKXn0HD0HexPV2Fja9cf/PP09zS5zR
# Df5Ky1dYXoUW3QIVVJnwjzwvTQJ4EGjI2DVLP8H3Z86YHK4zuS0dpApUk8SFot81
# sfXxPKezNPtdSMlGyWJEvEiZ6yhJU8M9j8AO3jWY6WJR3z1rQGHuBEHaz6dcVpbR
# +Uy3RISHmGnlgrkT5lW/yJJwkgoxb3+LMqvPa1qfYsQ+7r7tWaRTfwvxUoiKewpn
# JMuQzezSTTRMsOG1n5zG9m8szebKU3QBn2c13jhJLc7tOUSCGXlOGrK1+7t48Elm
# p8/6XJZ1kosactn/UJJTzD7CQzIJGoYTaTz7gTIzMmR1cygmHQgwOwcCAwEAAaOC
# AeEwggHdMBIGA1UdEwEB/wQIMAYBAf8CAQAwDgYDVR0PAQH/BAQDAgGGMBMGA1Ud
# JQQMMAoGCCsGAQUFBwMDMH8GCCsGAQUFBwEBBHMwcTAkBggrBgEFBQcwAYYYaHR0
# cDovL29jc3AuZGlnaWNlcnQuY29tMEkGCCsGAQUFBzAChj1odHRwOi8vY2FjZXJ0
# cy5kaWdpY2VydC5jb20vRGlnaUNlcnRIaWdoQXNzdXJhbmNlRVZSb290Q0EuY3J0
# MIGPBgNVHR8EgYcwgYQwQKA+oDyGOmh0dHA6Ly9jcmw0LmRpZ2ljZXJ0LmNvbS9E
# aWdpQ2VydEhpZ2hBc3N1cmFuY2VFVlJvb3RDQS5jcmwwQKA+oDyGOmh0dHA6Ly9j
# cmwzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEhpZ2hBc3N1cmFuY2VFVlJvb3RDQS5j
# cmwwTwYDVR0gBEgwRjA4BgpghkgBhv1sAAIEMCowKAYIKwYBBQUHAgEWHGh0dHBz
# Oi8vd3d3LmRpZ2ljZXJ0LmNvbS9DUFMwCgYIYIZIAYb9bAMwHQYDVR0OBBYEFGed
# DyAJDMyKOuWCRnJi/PHMkOVAMB8GA1UdIwQYMBaAFLE+w2kD+L9HAdSYJhoIAu9j
# ZCvDMA0GCSqGSIb3DQEBCwUAA4IBAQBqDv9+E3wGpUvALoz5U2QJ4rpYkTBQ7Myf
# 4dOoL0hGNhgp0HgoX5hWQA8eur2xO4dc3FvYIA3tGhZN1REkIUvxJ2mQE+sRoQHa
# /bVOeVl1vTgqasP2jkEriqKL1yxRUdmcoMjjTrpsqEfSTtFoH4wCVzuzKWqOaiAq
# ufIAYmS6yOkA+cyk1LqaNdivLGVsFnxYId5KMND66yRdBsmdFretSkXTJeIM8ECq
# XE2sfs0Ggrl2RmkI2DK2gv7jqVg0QxuOZ2eXP2gxFjY4lT6H98fDr516dxnZ3pO1
# /W4r/JT5PbdMEjUsML7ojZ4FcJpIE/SM1ucerDjnqPOtDLd67GftMYICLDCCAigC
# AQEwgYowdjELMAkGA1UEBhMCVVMxFTATBgNVBAoTDERpZ2lDZXJ0IEluYzEZMBcG
# A1UECxMQd3d3LmRpZ2ljZXJ0LmNvbTE1MDMGA1UEAxMsRGlnaUNlcnQgU0hBMiBI
# aWdoIEFzc3VyYW5jZSBDb2RlIFNpZ25pbmcgQ0ECEAGcoaRt5kT+J1V6ZDM/I4Qw
# CQYFKw4DAhoFAKB4MBgGCisGAQQBgjcCAQwxCjAIoAKAAKECgAAwGQYJKoZIhvcN
# AQkDMQwGCisGAQQBgjcCAQQwHAYKKwYBBAGCNwIBCzEOMAwGCisGAQQBgjcCARUw
# IwYJKoZIhvcNAQkEMRYEFJBV+rRupU6b+qsP0rcAQ5fBlZN0MA0GCSqGSIb3DQEB
# AQUABIIBACgkU37fTDp8pZVth/q5z7RpCKecIXpFsb1WlI+pN3g4M4rGkt6CGTzA
# w4ci0FjcQl7xQm2Xhe/JvziujweDCuuHacBNaedbXoCrxj7BNfl5Xfvnu/rl/9rh
# SVB6OIH3MWTuGXA3JRQ8nS6NUayPRqq0+LZLAYS+j2rsMHR3jun3pGY+c7cWAFFX
# pokWvHHlm8pIvy85ylUC0S/3WJWhdiSiJSIJFL/raAaRkRx1ek0bD8GujoZ4AbV7
# 3xW+37wDfuwq1f62DyR+GYwb6nba2B29Lvm3XU1nesx0rb9MDE6kLr99epeTriqH
# FpmdBmKcRw7t2zjOKdJuMwOD+v4g//Y=
# SIG # End signature block