Vonage API Help Center Vonage API Help Center

Internal FAQs

Number Insight
[Internal] Number Insight API Doc Linking Placeholder

Verify SDK
[Internal] How am I charged for the SDK Push subscription service?
[Internal] Who owns what when Verify SDK code is modified?
[Internal] What are the limitations of Verify SDK scope?
[Internal] How do I know if my push request via SDK was successful?
[Internal] How do I obtain the international form of a number from the Verify SDK?
[Internal] What is result code 56?
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Verify
[Internal] How do I create a custom Verify workflow for a customer?
[Internal] Can a customer select TTS on a per-request basis for Verify?
[Internal] Verify API Doc Linking Placeholder
[Internal] What is the difference between US-VIRTUAL-LEVEL3 and US-VIRTUAL-BANDWIDTH?
[Internal] Do we offer custom templates for Verify?
[Internal] Which networks are dropped for Verify routing?
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Numbers
[Internal] Guernsey and Jersey UK Numbers Result in International Messaging Rates
[Internal] Can we include a message reference in an Inbound SMS?
[Internal] Which local city codes do we have available for customers to buy?
[Internal] Why are some numbers highlighted in red or orange in the Admin Dashboard?
[Internal] Indian SMS-Enabled Virtual Numbers
[Internal] Are customers notified when their numbers are released due to low balance?
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Account Tools
[Internal] What information do we collect from visitors to the website?
[Internal] Why are API requests with the wrong API secret accepted?
[Internal] From which countries can customers not sign up for Vonage API?
[Internal] How can I download the entire phone book for an account?
[Internal] HTTP POST Method Error 411 Length Required
[Internal] Add an MD5 Signature to Customer Callbacks
See all 15 articles

Operator Restrictions - Trading Customers
[Internal] Fake DRs Possible Explanation
[Internal] Content Not Allowed in China
[Internal] Sender IDs in Italy via CLX
[Internal] US Routing for Trading Customers
[Internal] Agile Blocking Sender IDs to Italy with Italian Network Names
[Internal] 25002 MegaFon Sender ID Requirements
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Billing and Payment
[Internal] PayPal Not Showing as Payment Option
[Internal] Payment Status Shown as New on the Admin Dashboard
[Internal] How to Check If a Customer Is Set to Postpaid
[Internal] Customer unable to make payments via Payal "Cancelled by user". Paypal says issue not on their end.
[Internal] Referenced Transaction or Order Is Too Old
[Internal] How to get a tax residency certificate for 2023

Country-Specific SMS Features and Restrictions
Monaco SMS Features and Restrictions
[Internal] India LVNs for Inbound SMS
[Internal] US Toll Free Numbers or Content Marked as Spam
[Internal] US Short Code Audit Information
UAE SMS Features and Restrictions
TEMPLATE SMS Features and Restrictions

KCS
<Country Name> SMS Features and Restrictions
<Country Name> Voice Features and Restrictions
<Question & Answer Article Template>
<How to Article>
KCNEW - New Article Suggestion
<Solution Article Template>
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Voice
[Internal] Why is there a 10 second silence in TTS before voice starts?
[Internal] Voice API Doc Linking Placeholder
[Internal] No Callbacks After TTS-Prompt Call
[Internal] China Voice Error 403 or 480 Returned From Carrier
[Internal] Why is a customer calling a number assigned to a Vonage account receiving error 404?
[Internal] How to generate Usage Report (Call Detail Records) of Voice API using Admin Portal
See all 7 articles

Messaging
[Internal] Quota Violation Error
[Internal] Send-SMS API Doc Linking Placeholder
[Internal] What is error code 34 and why is it not documented in the Error list?
[Internal] US Short Codes API Doc Linking Placeholder
[Internal] UDH settings for concatenated messages
[Internal] Do we support sending SMS messages to numbers ported to VOIP providers in the US?
See all 52 articles