350-801 · Question #98
Refer to the exhibit. An engineer configures a VoIP dial peer on a Cisco gateway. Which codec is used?
The correct answer is D. G.729r8. On a Cisco IOS gateway VoIP dial peer, if no explicit 'codec' command is configured, the default codec is G.729r8. This is a well-known default behavior on Cisco IOS voice dial peers. G.711ulaw and G.711alaw require explicit configuration. G.729r8 provides compressed voice at 8…
Question
Refer to the exhibit. An engineer configures a VoIP dial peer on a Cisco gateway. Which codec is used?
Options
- AG.711ulaw
- BNo codec is used (missing codec command).
- CG.711alaw
- DG.729r8
How the community answered
(29 responses)- A3% (1)
- B7% (2)
- D90% (26)
Explanation
On a Cisco IOS gateway VoIP dial peer, if no explicit 'codec' command is configured, the default codec is G.729r8. This is a well-known default behavior on Cisco IOS voice dial peers. G.711ulaw and G.711alaw require explicit configuration. G.729r8 provides compressed voice at 8 kbps and is the default because it conserves WAN bandwidth. Engineers must explicitly specify 'codec g711ulaw' or 'codec g711alaw' to use those codecs; otherwise G.729r8 is assumed.
Topics
Community Discussion
No community discussion yet for this question.