The timeout property can be set for the WCF Service client call using binding tag.
- <client>
- <endpoint
- ...
- binding = "wsHttpBinding"
- bindingConfiguration = "LongTimeout"
- ...
- />
- client>
- <bindings>
- <wsHttpBinding>
- <binding name = "LongTimeout" sendTimeout = "00:04:00"/>
- wsHttpBinding>
- bindings>

Santhosh SubramaniamPosted Jan 21, 2014, 6:15 AM
refer this link
http://msdn.microsoft.com/en-us/library/hh924831%28v=vs.110%29.aspx