Vonage API Help Center Vonage API Help Center

Messaging

[Internal] Quota Violation Error
This is returned in at least the following scenarios: When a customer h...
[Internal] Send-SMS API Doc Linking Placeholder
This article is being used as a placeholder for KCS links for https://de...
[Internal] What is error code 34 and why is it not documented in the Error list?
This error code appears when a client is using the short code API. It is...
[Internal] US Short Codes API Doc Linking Placeholder
This article is being used as a placeholder for KCS links for https://de...
[Internal] UDH settings for concatenated messages
Nexmo will set UDHI (and insert the appropriate SAR UDH fields) for a lo...
[Internal] Do we support sending SMS messages to numbers ported to VOIP providers in the US?
Yes, we should be able to identify the provider and route messages accor...
[Internal] Handling China Traffic When Sender IDs Are Blocked by an Operator
To send to China, when we use the main bind "Citic bind",  Citic manages...
[Internal] Blocked Numeric Sender IDs to Austria H3G (43660)
Blocked numeric senders to Austria H3G (43660) Affects Dimoco-Google for...
[Internal] Setting Up an Account for SMPP Connection
In Admin dashboard edit the user and select "SMPP Enabled" box (make sur...
[Internal] Wordpress WP Restaurant Manager
There is a 3rd party plugin available for Wordpress called "WP Restauran...
[Internal] Why is a message not following the routing rule set in the Dashboard?
Question Why do messages that have been sent to a specific network with ...
[Internal] Modifying API Throughput Maximum for a Customer
The default throughput can be modified from the admin dashboard for a gi...
[Internal] Can I change the rate of DLR pushed to a customers callback?
Yes. This setting can be adjusted using the "Max MO per Second" field fo...
[Internal] MT Throughput for SMPP Accounts
In Users, selecting the client's Account ID or email address will take y...
[Internal] What does Fixed mean as a network code?
FIXED = landlines and any Mobile numbers we missed. This is for voice ma...
[Internal] 2FA Short Code Traffic Sender Sprint and T-Mobile
Question Why is the sender of a message sent to the 2FA short code API ...
[Internal] How can I check if a client is requesting to receive DRs?
This will be indicated in the log files (all-mt) with a parameter called...
[Internal] Options for Sending to the US
Use individually owned LVN (as documented in FAQ)
. We assign LVN from ...
[Internal] Opting in to Receive Marketing Message via Pre-Approved US Short Code
For this pre-approved marketing short code, each recipient must be expli...
[Internal] Setting a Unique Custom DLR Callback URL with Each Request
We have a custom DLR callback feature that is not currently documented o...
[Internal] How can I confirm if an Expired status is internally or externally generated?
The DLR CDR (all-dr log file) contains a flag that will suggest if the E...
[Internal] Mexico SMS Rejected Spam Filter
All content containing promotional offers, approvals, financial, competi...
[Internal] Do we forward STOP and HELP MO messages to customers with a shared Short Code?
Question If a user replies STOP or HELP on one of the shared short codes...
[Internal] Why are my SMS Virtual Numbers for Denmark so long?
Question Why are my SMS Virtual Numbers for Denmark so long?  Are Danish...
[Internal] Rejected Message by Vonage API Platform Blacklisted (11)
This rejection occurs if we have blacklisted the destination number. Thi...
[Internal] Old Keyword Marketing Short Code Docs
The US-only short code for Keyword marketing was discontinued for new cu...
[Internal] Problems Sending Concatenated Messages
It is worth to check if the supplier only supports 8-bit or 16-bit UDH e...
[Internal] Identifying Customers Binding to SMPP3/4 versus SMPP Proxy in Hong Kong
Connections from the Hong Kong proxy will generate binds on the private ...
[Internal] France Routings
Question What are the delivery gateways in France? What are the time res...
[Internal] Brazil Numbering Plan Changes
Lately, we have received quite a few complaints about messages to Brazil...