300-070 · Question #324
Which IOS command do you use for PRI when you enable QSIG signaling to connect ISDN to a PBX?
The correct answer is D. isdn switch-type primary-qsig. To enable QSIG signaling on a PRI (Primary Rate Interface) connection between a Cisco router and a PBX, the correct IOS command is 'isdn switch-type primary-qsig'. The 'primary' prefix indicates a PRI (T1/E1-based) interface as opposed to a BRI. QSIG is a standards-based…
Question
Which IOS command do you use for PRI when you enable QSIG signaling to connect ISDN to a PBX?
Options
- Aisdn switch-type basic-ni
- Bisdn incoming-voice voice
- Cisdn switch-type basic-qsig
- Disdn switch-type primary-qsig
How the community answered
(40 responses)- A3% (1)
- B5% (2)
- D93% (37)
Explanation
To enable QSIG signaling on a PRI (Primary Rate Interface) connection between a Cisco router and a PBX, the correct IOS command is 'isdn switch-type primary-qsig'. The 'primary' prefix indicates a PRI (T1/E1-based) interface as opposed to a BRI. QSIG is a standards-based signaling protocol used between PBXs and supports supplementary services such as call transfer and call diversion. Option C (basic-qsig) would be used for a BRI interface with QSIG. Option A (basic-ni) is for National ISDN BRI. Option B (incoming-voice voice) converts incoming ISDN data calls to voice calls and is unrelated to switch-type selection.
Topics
Community Discussion
No community discussion yet for this question.