code indicates that the serving office (Switch) utilized call processing capabilities of another office for some or all of the call. Also known as Service Assist. 129 Basic SDN Call Generally, this indicates some type of AIN (Advanced Intelligent Network) feature was used or requested, including call featu

code indicates that the serving office (Switch) utilized call processing capabilities of another office for some or all of the call. Also known as Service Assist. 129 Basic SDN Call Generally, this indicates some type of AIN (Advanced Intelligent Network) feature was used or requested, including call featu

code indicates that the serving office (Switch) utilized call processing capabilities of another office for some or all of the call. Also known as Service Assist. 129 Basic SDN Call Generally, this indicates some type of AIN (Advanced Intelligent Network) feature was used or requested, including call featu

code indicates that the serving office (Switch) utilized call processing capabilities of another office for some or all of the call. Also known as Service Assist. 129 Basic SDN Call Generally, this indicates some type of AIN (Advanced Intelligent Network) feature was used or requested, including call featu