Sending MMS on iPhone using CoreTelephony

Question

I am interested in sending an MMS within a private application on the iPhone. A lot of the information I need is proprietary, and therefore I can't find it anywhere. Basically, I'm looking for the proper way to construct a CTMessage and encode it for MMS, and then sending it via one of the overloaded sendMMS functions. Thanks in advance.

Answer 1

For those interested: here is what I managed to dig up (&/OR piece together myself).

For every MMS, a CTMessage is allocated & initialized. addRecipient/setRecipient is called to do just that.

For each data/text section a CTMessagePart is built with its data and corresponding datatype, and then added to the CTMessage's items array. The first item in each MMS items array is always a CTMessagePart containing a SMIL-formatted layout that the recipient interprets to display the message. Each CTMessagePart following the first is in the order that it is referenced from the SMIL data.

Each (unmodifiied) iPhone has an instance of CTMessageCenter running, with the id sharedMessageCenter. Calling sharedMessageCenter's sendMMS, giving the id of the CTMessage you just created will automate the rest of the process. Essentially, the CTMessage is encoded using the CTMmsEncoder into an MMS-PDU hex string. (Not to sure of the correct name for it, hah). Anyways, sharedMessageCenter's send method will then send the (encoded) MMS to your provider's MMSC.

That pretty much sums it up, and should give anyone looking to head down that path a good place to start depending on what they're doing. I can do my best to answer any questions.