I have built a Mobile site in a sub-domain. I have successfully implemented the redirect 302 from:

www.domain.com to m.domain.com in htaccess.

What I'm looking to achieve now it to redirect users from:

www.domain.com/internal-page/ > 302 > m.domain.com/internal-page.html

Notice that URL name for desktop and mobile is not the same. The code I'm using looks like this:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

# Mobile Redirect
# Verify Desktop Version Parameter
RewriteCond %{QUERY_STRING} (^|&)ViewFullSite=true(&|$)

# Set cookie and expiration
RewriteRule ^ - [CO=mredir:0:www.domain.com:60]

# Prevent looping
RewriteCond %{HTTP_HOST} !^m.domain.com$

# Define Mobile agents
RewriteCond %{HTTP_ACCEPT} "text\/vnd\.wap\.wml|application\/vnd\.wap\.xhtml\+xml" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "sony|symbian|nokia|samsung|mobile|windows ce|epoc|opera" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} "mini|nitro|j2me|midp-|cldc-|netfront|mot|up\.browser|up\.link|audiovox"[NC,OR]
RewriteCond %{HTTP_USER_AGENT} "blackberry|ericsson,|panasonic|philips|sanyo|sharp|sie-"[NC,OR]
RewriteCond %{HTTP_USER_AGENT} "portalmmm|blazer|avantgo|danger|palm|series60|palmsource|pocketpc"[NC,OR]
RewriteCond %{HTTP_USER_AGENT} "smartphone|rover|ipaq|au-mic,|alcatel|ericy|vodafone\/|wap1\.|wap2\.|iPhone|android"[NC]

# Verify if not already in Mobile site
RewriteCond %{HTTP_HOST} !^m\.

# We need to read and write at the same time to set cookie
RewriteCond %{QUERY_STRING} !(^|&)ViewFullSite=true(&|$) 

# Verify that we previously haven't set the cookie
RewriteCond %{HTTP_COOKIE} !^.*mredir=0.*$ [NC]

# Now redirect the users to the Mobile Homepage
RewriteRule ^$ http://m.domain.com [R]
RewriteRule $/internal-page/ http://m.domain.com/internal-page.html [R,L]