Send or receive text messages from your website or application with
short codes. A
short code is a special 5-6 digit number (e.g., 75195) that allows your
customers to subscribe to any type of SMS communication. It is the
carrier-preferred method for sending text messages to your end-users.
CDYNE dedicated short codes can send up to 35 outgoing messages per
second, and are available for U.S. and Canadian text messaging.
Short Code FAQs
links to a PDF document.
SimpleSMSSend is recommended for sending
single, immediate text messages.
AdvancedSMSSend is recommended for sending
scheduled text messages and allows multiple numbers with one message, or
multiple numbers with individual messages.
U.S. Carriers are standardized and all text messages are 160 characters
(including spaces) in length. When sending a text message to a recipient
in the U.S. with more than 160 characters, the SMS Notify! API will
automatically split the message into two or more messages for delivery.
Canadian Carriers vary from 136 to 160 characters (including spaces) in
length. CDYNE sends to Canada the same way as the U.S. To ensure
complete message delivery, CDYNE advises that your application only send
messages to Canadian recipients in 136 character increments. If the
message is longer than 136 characters, the best practice is to split the
message on your application side at the 136 character mark to avoid data
loss that may occur from Canadian Carriers that truncate anything over
136 or 140 characters.
Know when your SMS was sent or received with the
System. CDYNE SMS Notify! API will automatically post information to a
URL you specify when text messages are sent or received via
DIDs and short
data is posted behind the scenes, and is not visible on your webpage.
are provided on how to capture this data to store in a database. CDYNE
recommends that the data returned to be stored within your systems for
reporting and reference information.
Dedicated short codes send up to 35 messages per second per short code.
Short codes are country specific. A U.S. short code will only send
messages in the U.S., and a Canadian short code will only send messages
SMS Notify! recognizes the date and time in
(Coordinated Universal Time). When clocks move forward 1 hour in the
spring, most time zones will need to remove one hour from their UTC
offset. For example, Eastern Standard Time (EST) is UTC -5 hours but
Eastern Daylight Time (EDT) is UTC -4 hours.