SalesForce: can it display an external page / can it be published in another SF implementation

Question

I was asked to look at two requirements for SalesForce, but I am struggling to find simple answers! I don’t need to know HOW to do any of these things, simply if it is possible and if its complex / normal / easy.

1) Can SF display an “external” web page in some frame?
for example, Display one of our Extranet pages in SF, possibly inside some frame.

2) Can one “implementation” of SF talk to another? for example, We have a basic implementation of SF, but we would like it to be separate for a subsidiary, but so that they can "talk" to each other, based on triggers, etc.

3) Can SF talk to external web services? for example We have some existing WCF WebServices ... can SF call them based on triggers / users by clicking a button, etc.

WHY thanks for any answers :)

Answer 1

• Yes, simple. You can easily add a tab on the Internet (Setup-> Create-> Tabs) or paste <iframe>Visualforce on your pages if you need it to appear next to something else.

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Answer 2

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Answer 3

There are also some HTTP classes for creating HTTP requests and handling HTTP responses. For more information, see This:   http://www.salesforce.com/us/developer/docs/apexcode/index_Left.htm#CSHID=apex_classes_restful_http.htm|StartTopic=Content%2Fapex_classes_restful_http.htm|SkinName