@robcioff1 wrote:
Did you ever get this resolved? I am receiving the same error today
Did you browse through the posts in this long thread? There are reports by several users on how they were able to proceed to efile after using a conventional USA phone number in the Intuit Account settings and in the return My Info section.
Also see this FAQ:
https://ttlc.intuit.com/community/bugs-and-error-messages/help/why-am-i-getting-601errv-5-custhdr-17...
And see this TurboTax answer in a similar thread:
https://ttlc.intuit.com/community/taxes/discussion/re-i-try-efile-but-i-get-message-invalid-sms-numb...
