Yes, being out of country can greatly restrict your ability to reach out and touch someone. In this case, if you are staying at a Marriott property, you may be able to get connected to MR for free. If not, using some form of VoIP service might be a good way to go. Many services allow toll-free numbers without having to pay per minute. Or you can look up SIP Broker codes to dial toll-free numbers for free. Personally, I use CallCentric that has many peering agreements.