supplementary-telephony-services-reference.md

description	ms.assetid	title	ms.topic	ms.date
The Supplementary Telephony functions are listed by category in the following topics.	11df5277-b090-41d8-a573-11ca8d445139	Supplementary Telephony Services Reference	article	05/31/2018

Supplementary Telephony Services Reference

The Supplementary Telephony functions are listed by category in the following topics.

• Supplementary Line Service Functions
• Supplementary Phone Service Functions