Add the following lines to file 

  <QuintiqInstallation>\models\<Model>\_var\_Main\ModelSettings\Common\Development\_ROOT_Role_Development.properties

(or one of the other ModelSettings-files)

domainmodel.integratorconfig.echoendpoint.echo_echotoquintiq=template:domainmodel.integratorconfig.echoendpoint
domainmodel.integratorconfig.echoendpoint.echo_echotoquintiq.replydelaymillis=0
domainmodel.integratorconfig.quintiqendpoint.echo_msgfromquintiq=template:domainmodel.integratorconfig.quintiqendpoint
domainmodel.integratorconfig.quintiqendpoint.echo_msgfromquintiq.connectiongroupname=SERVER
domainmodel.integratorconfig.quintiqendpoint.echo_msgfromquintiq.integratorid=Echo
domainmodel.integratorconfig.quintiqendpoint.echo_msgfromquintiq.outboundrequesttimeout=60