| Exam 300-080 | Question id=4161 | Troubleshoot Call Quality Issues |
Calls from a cisco IP Phone out to the PSTN through SIP TRUNK intermittently drop after the call is active for exactly 15 minutes. Which process is failing?
| A. |
SIP Keepalive timeout | |
| B. |
SIP Dialog Refresh | |
| C. |
SIP OPTIONS Timeout | |
| D. |
SIP Expires Timeout | |
| E. |
SIP Register Refresh | |
| F. |
SIP Session Refresh |