Give you a statement and table with its title in Markdown format, please determine whether the statement is supported or refuted by, or is unrelated to the table. It'a binary classification problem, you should choose the answer between supported and refuted. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| protocol | creator | license | transport layer security | bulletins to all contacts | batch file sharing |
| gadu - gadu | gg network | proprietary | yes | no | yes |
| irc | jarkko oikarinen | open standard | yes , depending on individual server support | no | no |
| windows messenger service | microsoft | proprietary (discontinued) | no | yes | no |
| msnp ( windows live messenger , etc) | microsoft | proprietary | no | no | yes |
| ( mumble ) | thorvald natvig | open standard | yes | no | yes |
| oscar ( aim , icq ) | aol | proprietary | yes (aim pro , aim lite) | no | yes |
| rvp ( windows messenger , etc) | microsoft | proprietary (discontinued) | no | no | no |
| sip / simple | ietf | open standard | yes | yes | yes |
| steam friends | valve corporation | proprietary | proprietary | yes | no |
| 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 |
Title:
comparison of instant messaging protocols
Statement:
skype has a different level of batch file sharing from zephyr notification service
Answer:
supported