ANT: Telnet is not working

I am trying the below ANT telnet task:

        <telnet userid="appldev" password="techm123" server="$\{BT_Server\}">
	<read>/u01/appldev/devappl/po/11.5.0/reports</read>
	<!--write>cd /u01/appldev/devappl/po/11.5.0/reports/</write-->
	<write>ls</write>
	<read string="/u01/appldev/devappl/po/11.5.0/reports"/>
</telnet>

It will execute for infinite time after login to the remote server. Getting below message:

Buildfile: C:\Program Files\Java\apache-ant-1.8.1\build.xml

sql_compile:
[telnet] Unauthorised Access is Illegal
[telnet] login:
[telnet] appldev
[telnet] Password:

I need to forcefully terminate the job by pressing ctrl+c. It is giving a message- "Terminate batch job (Y/N)?"
Please help.