Comparison of instant messaging protocols Table of instant messaging protocols Table of instant messaging protocols

| Protocol | Creator | License | Transport_Layer_Security | Bulletins_to_all_contacts | Batch_file_sharing |
|---|---|---|---|---|---|
| Skype | Skype | Proprietary | Proprietary | No | Yes |
| TOC2 | AOL | Proprietary (Discontinued) | No | No | Partial |
| XMPP / Jingle ( Google Talk ) | Jeremie Miller , standardized via IETF | Open standard | Yes | Yes | Yes |
| YMSG ( Yahoo! Messenger ) | Yahoo! | Proprietary | No | Yes | Yes |
| Zephyr Notification Service | MIT | Open standard | No | Yes | No |