Purpose and Scope This section describes a teleservice that is designed to support downloading of non-NAM programming information to an MS, an example of non-NAM programming information is that information to support Intelligent Roaming (IR). The Over-the-Air Programming Teleservice (OPTS) provides a sequence of messages exchanged between the Over-the- Air Service Provisioning Function (OTAF) and the MS for the delivery of information. OPTS is a Teleservice that can be performed either on a DTC or a DCCH. Network support for OPTS is beyond the scope of this document and references to the Over-the-Air Service Provisioning Function (OTAF) are only provided to aid in describing the support of OPTS over the air interface.