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Outbound SMS

Adding a New Line in SMS Using Vonage REST API
Objective Adding a new line or carriage return in SMS using the Vonage R...
What is the minimum/maximum of a Sender ID length?
Question How long can the Sender ID be? Applies To Sender ID SMS Answe...
What are some best practices for sending social invites through SMS?
Question When sending social invites via SMS to promote an app or servic...
How to Avoid Outbound SMS Rejection
Question What are some best practices to avoid having my outbound SMS re...
Message Delivery Failed Error 10 Invalid Message
Symptom When attempting to send an outbound SMS, you receive an error th...
Error 8 Network Error
Symptom When sending SMS, you receive Error 8 Network Error. Applies To ...
Vonage SMS Delivery Error Codes and Descriptions
Question What are common error codes I might see when attempting to send...
DLR Error Code 99 General Error
Symptom When sending outbound SMS, I received delivery receipt error cod...
DLR Error Code 9 Illegal Number
Question What does it mean when I see a delivery receipt error code 9 in...
DLR Error Code 3 Absent Subscriber Permanent
Question What does delivery receipt error code 3 refer to when sending o...
DLR Error Code 5 Portability Error
Symptom When sending outbound SMS, I received delivery receipt error cod...
DLR Error Code 6 Anti-Spam Rejection
Question Why am I receiving a delivery receipt error code 6 after sendin...
DLR Error Code 11 Unroutable
Symptom When sending outbound SMS, I received delivery receipt error cod...
DLR Error Code 7 Handset Busy
Symptom When sending outbound SMS, I received delivery receipt error cod...
DLR Error Code 4 Call Barred By User
Symptom When sending outbound SMS, I received delivery receipt error cod...
How is a multipart SMS constructed?
Question How is a multipart SMS constructed? Applies To Outbound SMS Mu...
Why do multipart messages receive DLRs with extra latency?
Question Why are concatenated message sometimes slow to deliver? Applies...
What happens when you send a message to a Barred Number?
Question What happens when a user sends a message to a barred number? Ap...
What happens when you send a message to a Temporarily Absent number?
Question What happens if you send a message to a temporarily absent numb...
What are the issues with relying on handset delivery receipts?
Question What are the issues with relying on handset delivery receipts? ...
Does Vonage provide free delivery receipts?
Question Is there a charge for delivery receipts? Applies To Outbound S...
Why does my India Sender ID have extra letters in front of it?
Question Why does my India Sender ID have extra letters in front of it? ...
Do you deliver SMS to ported numbers?
Question Does Vonage deliver SMS to ported numbers? Applies To Outbound...
Does the Vonage SMS API support Unicode encoding?
Question Do Vonage APIs support Unicode encoding? Applies To Unicode En...
Can I change the Sender ID for Vonage Outbound SMS?
Question Can I set my own Sender ID address? Applies To Sender ID Outbo...
How fast can I send Outbound SMS?
Question How quickly can I send SMS through Vonage? Applies To Outbound...
How many countries and networks can I reach with Vonage Outbound SMS?
Question How many countries and networks can I reach with Vonage Outboun...
Why is my Sender ID changed when I send SMS globally?
Question Why is my Sender ID changed when I send SMS globally? Applies T...
What are the definitions of common SMS terminology?
Question What do the common acronyms regarding SMS mean? Applies To SMS...
Troubleshooting SMS Delivery
Symptom When sending SMS, the message is not delivered. Unsuccessful del...