Not at all buddy ! A hallway page , also known as a door way page is a classic black hat technique that will get the site blacklisted . It is basically a page that is stuffed with keywords so that it ranks higher on the search engines and then it is coded with a redirect to your main site . So people have been making multiple such high ranking pages for various pages and using a 301 to their main site for SERPS and traffic . This is the classic black hat and since it funnels people to your site from other sites redirects, it is called a hallway or door way . It is a strict "Don't try this at home" act
its an unethical technique of seo to redirect the keyword rich high ranking page to be redirect to the website of any product or any client and thus creating the traffic. this might ban the website after sometime if google catches the redirect .!! so not suggested for any kind of seo...
A hallway page is referred to as a web page that comprises the records of all the web pages as well as the links that later links up to the main website. The major reason why a hallway page is created is to help the search engine spider for indexing all the web pages and then later crawling into all the links which are made available in the hallway page. Generally the page ranks of these hallway pages are very high. Therefore this is an important consideration in emarketing.