Refer to the exhibit.
Which party has a SIP B2BUA role in the call?
| A. |
172.17.4.100 | |
| B. |
10.100.4.65 and 172.17.4.100 | |
| C. |
10.100.4.65 | |
| D. |
None of the parties has a B2BUA role in the call. | |
| E. |
10.100.4.68 and 10.100.4.65 |