public String getProtocol() {
        return this.protocol;
    }
<p>
The protocol of the contact method, such as <code>Email</code> or <code>SMS</code> (text messaging).
</p>
<p>
The <code>SMS</code> protocol is supported only in the following Amazon Web Services Regions.
</p>
<ul>
<li>
<p>
US East (N. Virginia) (<code>us-east-1</code>)
</p>
</li>
<li>
<p>
US West (Oregon) (<code>us-west-2</code>)
</p>
</li>
<li>
<p>
Europe (Ireland) (<code>eu-west-1</code>)
</p>
</li>
<li>
<p>
Asia Pacific (Tokyo) (<code>ap-northeast-1</code>)
</p>
</li>
<li>
<p>
Asia Pacific (Singapore) (<code>ap-southeast-1</code>)
</p>
</li>
<li>
<p>
Asia Pacific (Sydney) (<code>ap-southeast-2</code>)
</p>
</li>
</ul>
<p>
For a list of countries/regions where SMS text messages can be sent, and the latest Amazon Web Services Regions
where SMS text messaging is supported, see <a
href="https://docs.aws.amazon.com/sns/latest/dg/sns-supported-regions-countries.html">Supported Regions and
Countries</a> in the <i>Amazon SNS Developer Guide</i>.
</p>
<p>
For more information about notifications in Amazon Lightsail, see <a
href="https://lightsail.aws.amazon.com/ls/docs/en_us/articles/amazon-lightsail-notifications">Notifications in
Amazon Lightsail</a>.
</p>

@return The protocol of the contact method, such as <code>Email</code> or <code>SMS</code> (text messaging).</p>
        <p>
        The <code>SMS</code> protocol is supported only in the following Amazon Web Services Regions.
        </p>
        <ul>
        <li>
        <p>
        US East (N. Virginia) (<code>us-east-1</code>)
        </p>
        </li>
        <li>
        <p>
        US West (Oregon) (<code>us-west-2</code>)
        </p>
        </li>
        <li>
        <p>
        Europe (Ireland) (<code>eu-west-1</code>)
        </p>
        </li>
        <li>
        <p>
        Asia Pacific (Tokyo) (<code>ap-northeast-1</code>)
        </p>
        </li>
        <li>
        <p>
        Asia Pacific (Singapore) (<code>ap-southeast-1</code>)
        </p>
        </li>
        <li>
        <p>
        Asia Pacific (Sydney) (<code>ap-southeast-2</code>)
        </p>
        </li>
        </ul>
        <p>
        For a list of countries/regions where SMS text messages can be sent, and the latest Amazon Web Services
        Regions where SMS text messaging is supported, see <a
        href="https://docs.aws.amazon.com/sns/latest/dg/sns-supported-regions-countries.html">Supported Regions
        and Countries</a> in the <i>Amazon SNS Developer Guide</i>.
        </p>
        <p>
        For more information about notifications in Amazon Lightsail, see <a
        href="https://lightsail.aws.amazon.com/ls/docs/en_us/articles/amazon-lightsail-notifications"
        >Notifications in Amazon Lightsail</a>.
@see ContactProtocol
aws-java-sdk-lightsail/src/main/java/com/amazonaws/services/lightsail/model/CreateContactMethodRequest.java