title: Does HL7 messages need start block and end block symbols?
body: <p>I am a newbie with HL7 messages.I have to make interface integration between two softwares.I need to send HL7 messages to another software which is developed by other teams.I implement wcfservice to send the HL7 messages.Our software use this wcfservice to send messages.When I test with my own listener testing project,it works.But,when I send to them,they can't receive my messages.They said that I need to put start block and end block symbol in messages.So,I want to clear whether HL7 messages need start and end block symbols or not.</p>