We've been attempting to do bulk SMS pushes to approximately 3000 mobile subscribers using Kannel through an EMI/UCP SMSC. It works, but then again it seems to take approximately 2-3 hours for a pushed message to reach a phone. We've been using Kannel's SMS GET with about 200 subscribers within every SMS GET request.
Who could be at fault here? Is our method for doing SMS pushes inherently slower than a Kannel POST or XML POST? Or could the telco be rate limiting us in fine print? -- dido "The only thing of value passing through a politician's brain is a bullet."
