Try block for One Time Passcodes via APM

I found the answer for the first part via a post:

when ACCESS_POLICY_AGENT_EVENT { expr srand([clock clicks]) set otp [string range [format "%08d" [expr int(rand() * 1e9)]] 1 6 ] set mail [ACCESS::session data get "session.ldap.last.attr.mail"] set mobile [ACCESS::session data get "session.ldap.last.attr.mobile"] set mobile2 [string map {"." "" " " "" "-" "" "(" "" ")" "" "+" ""} $mobile] ACCESS::session data set session.user.otp.pw $otp ACCESS::session data set session.user.otp.mobile $mobile2 ACCESS::session data set session.user.otp.username [ACCESS::session data get "session.logon.last.username"] }

The second part basically there is an attribute in AD called phone number. The above iRule will normalize the data to provide it in the right format. Then I need something else (I'm thinking more irule magic) to append @vtext.com and other carriers included above in my original post.

So user logs in gets APM logon page with username and password. User enters in username and password gets Auth'd against AD and then gets a OTP logon page to enter in the logon page. At that point the F5 is utilizing the SMTP config to send an email (email to text) to the user keying off of the Phone number attirbute in AD. The attribute in AD today is just a phone number but I want them to get that OTP via text. So when APM sees the phone number it knows the first 10 digits and then proceeds to try each one of the carriers to send the textmessage to as our users might have any one of the above carriers and I don't want to have to manually figure that out by asking or by putting that data in AD. If F5 could dynamically handle that via an irule or some other method where it tried each one of the carriers above by appending those @addresses to the phone number it would make it pretty nifty.

Thanks, TechNTactical