Hi there,
Firstly, the MMS documentation here appears to be incorrect:
https://www.3cx.com/docs/supported-sip-trunk-requirements/#h.9lv8vi548lbk
The SMS documentation has the from/to/text inside a payload element, but the MMS documentation does not.
I implemented my initial POST to the 3CX...
I've notice that in the 3CX cell phone app and the 3CX Desktop app that when you download the incoming MMS image it does not have a file extension and hence the device does not know how to open the file. We are using Flowroute for our service provider using v3. Is this a bug with the 3CX system...
We are excited that MMS is supported on 3CX V18! We have been testing MMS and have come across the following issues. We are hopeful that 3CX can take action quickly so that the MMS service is sellable and usable.
Image/file size when sending photos
The majority of carriers don't accept images...