Although ForgeRock OpenAM has included multi-factor authentication capability, OpenAM can also integrate with pre-existing solutions such as those from Symantec.
This wiki entry details how to integrate ForgeRock OpenAM with Symantec VIP Enterprise Gateway for the purpose of One-Time Password (OTP) Multi-factor Authentication configuration
More details here: https://wikis.forgerock.org/confluence/display/openam/Multi-factor+Authentication+with+Symantec+VIP+Enterprise+Gateway
