Question

I d like to set up Kannel to send SMS messages without going through a 3rd party gateway like Clickatell or Twilio. In other words, I d like to connect to the SMPP server for each wireless services (AT&T, Verizon, etc.).

How difficult/easy is it to run a Kannel server this way?
Each SMSC has to be configured for each mobile network. What is the support like for each network in the US (AT&T, Verizon, T-mobile, Sprint)?
Can someone point me to a tutorial/blog for pulling this off (besides the docs)?

Answer 1

Cotopaxi,

Kannel will happily work with all the carriers in the US. Unfortunately a number of them have highlighted that they are not interested in taking on new direct connects. Only when you end up guaranteeing a minimum amount of revenue, and pay a steep setup cost (> $100K) will you be able to get up and running.

I m not sure if the company you are working for, is indeed interested in paying those sums of money, but be aware that carrier integration requires a lot of money, certification testing and commitments to ongoing improvements, which aggregators (like mBlox/OpenMarket/Twilio/Nexmo take away from you and deal with on your behalf.

Do take those considerations in mind when deciding on the strategy here.

All the best,

Marijn.

Answer 2

Here is a good tutorial: http://mobiforge.com/developing/story/sending-sms-with-smpp-kannel-and-java on setting up Kannel, but to connect to each SMSC is very costly. Using an aggregator like OpenMarket/Twilio/etc... is a better solution.

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