With SMSified, you can build nearly any SMS application you can imagine. Auto respond to inbound messages, send interactive outbound notifications, drive sales with promotional offers, enable two-way customer self-service applications and much more. Check out our documentation and sample apps.

SMSified provides you with $20 of initial credit and one free phone number - this way you can test all the functionality for free! Once you've used up your initial credit, you pay a low per message rate for SMS; if you elect to add additional numbers, there will be an additional monthly fee per number. There are no contracts, no set-up fees and you only pay for what you use. Check out our pricing page for specific costs.

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Yes! Check out the docs and have fun!

Long codes are standard phone numbers like 1 (407) 555-0100. Short codes are the much smaller, 5-6 digit numbers you typically see for promotions/marketing, like "Text A to 55444 to vote for Billy McSingerguy".

Long codes are intended only for person-to-person interaction. This includes normal texting between two people, group SMS applications that join multiple users together, or a forwarding application (someone sends your app a message, it forwards the message to your phone). There are content restrictions as well - you cannot transmit information related to political marketing (news is acceptable), promotion or facilitation of crime, alcohol, tobacco, guns/weapons, illegal drugs, pornography/sex/prostitution, violence/death, hate, gambling, religion, or specifically mentions a wireless carrier (even for parody).

Short codes, on the other hand, are open to all types of applications, though the same content restrictions apply. They do have stricter requirements in terms of the user experience, however. Applications using shortcodes must be Opt-In and must confirm via text that the user has opted in; they also need to respond to specific keywords like STOP and CANCEL to unsubscribe (as well as HELP). In addition, you need to predefine what your application will say and never deviate from it.

If an application is utilizing a long code for any other function besides those listed above, especially large volume marketing or promotions, there is potential for the traffic to be deemed inappropriate for a long code and blocked at the carrier level. Small applications without commercial orientation, like a personal reminder app, are unlikely to generate enough traffic to be flagged by the carriers, but larger applications with significant traffic should definitely consider a short code or risk having their application blocked.

Note that low volume application testing is also likely to be ignored; if you wanted to verify your SMSified application functioned properly before acquiring a short code, you could test utilizing a long code, but again, only if the traffic volume is minimal.

Long codes are restricted by the carriers to 1 message per second (60 per minute) per originating phone number. This cannot be increased.

Short codes can send up to 40 messages per second (2400 per minute).

Duplicate messages sent within one minute will also be filtered, for both long codes and short codes. A "duplicate message" is defined as the same to, from and message body.

There are no rate limitations on inbound traffic for long codes or short codes. This also means if you have a strictly inbound application, one that does not need to reply back via SMS when a text message is received, then you are unlikely to encounter any carrier difficulties.

SMS short codes require approximately 90 days to register with the SMS carrier networks; there's an application process that we'll help you through. Costs include a $3000 USD setup fee and $750/month (prepaid in 3 month increments). The same per message rate applies to short codes, same as it does for 10-digit numbers. The short code you receive will be randomly assigned by the carriers; if you have a specific short code in mind, the monthly cost would be a bit higher.

Dedicated Short Codes are yours and yours alone, while Shared Short Codes are utilized by many companies with traffic differentiated by keywords. SMSified currently only offers Dedicated Short Codes, as Shared Short Codes do not work with all carriers and come with the risk that one of the companies/developers utilizing the code may transmit unacceptable traffic (such as pornographic advertisements), causing the short code to be blocked by the carrier, effectively killing all other applications that relied on the number.

It depends on your traffic type and output; see "When should I use a short code or a long code?" above.

Not at this time, as short codes only accept traffic from wireless carriers and SMSified numbers are not detected as linked to a wireless carrier.

Same general situation as sending to a short code - short codes can only deliver messages to mobile phones, and SMSified numbers are not considered actual mobile phones. This can affect products that utilize a short code to send text messages, such as Skype.

Yes, though this means delivery to the network, not to the handset. SMS carriers typically do not support handset delivery confirmation. You can use a subscription or set a notifyURL on each SMS message to receive callback information - you also have access to extensive reporting.

SMSified works with all major U.S. carriers, such as AT&T, Sprint, T-Mobile, Verizon, Virgin Mobile, & MetroPCS.

SMSified is currently limited to U.S. destinations only.

SMSified is a new service offered by Voxeo. It runs on the same fault-tolerant network infrastructure and patented architecture used by thousands of companies and more than 200,000 developers.