Vonage API Help Center

Vonage API Help Center

SMS

Generic SMS KB articles

What is SMS EU Data Storage?

OverviewVonage SMS EU Data Storage enables customers to store end-user p...

Apple iOS26 Update: Impact on A2P Messaging

US/Canada messaging guidelines to help you stay connected with your audi...

Toll-Free Number (TFN) Registration Helpers

Sections Below Include TFN - Opt-In Consent Options Restricted C...

Vonage Opt-Out Assist

Overview Opt-Out Assist is a built-in keyword management service that Vo...

Toll-Free Number Changes Oct 1, 2022 (FAQ)

Starting October 1st, 2022, there are changes to 8XX toll-free verifi...

Sprint/T-Mobile Network Changes

Question: What are Sprints/T-mobiles Network Changes When does this cha...

SMS/MMS Pass-through Fees (PTFs) Changes

In this article, you can find the price changes related to SMS and MMS P...

Setting a Validity Period (TTL) for SMS/MMS

Question: What is a Validity Period How do I setup a Validity Period Be...

What encoding standards does Vonage support?

Question What encoding standards does Vonage support in SMS? Applies To ...

How to check that I trust Vonage TLS Certificate?

Objective How do I check my local environment trusts the Root CA used ...

What are number pools? Number Pools are lists of numbers (LVNs) that a c...

Vonage SMS Message IDs

Question How do I find the Vonage SMS Message ID? Applies To SMS API A...

What is SMS EU data center isolation?

⚠️ Effective immediately, the Beta program described below is closed to ...