hi all,

While my SAP colleage was trying to do a SOAP call from XI Server,an error pops up as below:

'com.sap.aii.af.ra.ms.api.RecoverableException: unable to create a socket: java.io.IOException: unable to create a socket'. Cause Exception: 'unable to create a socket

can anyone please help me out on this?
is there a need to open up any firewall?if yes then how?

Please assist ASAP