'org.mobicents.ussd:parent:3.0.21'
<dependency>
<groupId>org.mobicents.ussd</groupId>
<artifactId>parent</artifactId>
<version>3.0.21</version>
</dependency>
<dependency org="org.mobicents.ussd" name="parent" rev="3.0.21"/>
"org.mobicents.ussd", "parent", "3.0.21"