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Test your basic knowledge |
CCIE Voice Test
Start Test
Study First
Subjects
:
cisco
,
it-skills
,
ccie
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. With the gw-priority command - does higher or lower priority take precedence?
<i>h225 timeout tcp establish 3</i> within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Higher
SIP Dial Rules
<i>Auto Call Pickup Enabled</i>
2. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
Call forwarding between voip to voip (when CUBE is in play)
1 ... this is not optional!
Create 2 voip dial-peers - one the Sub and one to the Pub (the Pub with a preference of 1). Then create a <i>voice class h323</i>and set the <i>h225 timeout</i> value so it will hunt between the two.
SIP Dial Rules
3. What do you need to do to activate the CME GUI?
Find the GUI Files - show flash | i .html|<i>ip http server</i>|<i>ip http path flash:/<PATH TO FILES></i>||telephony service|web admin system name admin pass cisco|dn-webedit
To notify SIP Phones of NTP
Mobile Connect
Put them in a route list.
4. How do you enable Extension Mobility for a device in CME?
In CUCM - configure CFUR to point to it's E164 number.
Automatically configures the MGCP GW for you.
Assign a logout-profile to the ephone.
#voice service voip| #no supplementary-service h225-notify cid-update
5. How do you configure phone ports on an ESW?
Service Parameters --> <i>Mobile Voice Access Number</i>
Trunk Port Method (3750 or ESW)||interface fa0/1|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10|switchport voice vlan 20|spanning-tree portfast
Bandwidth
Interface f0/0|no ip address|no shut||interface f0/0.10|encap dot1q 10 native --> !!! DATA VLAN !!!|ip address 10.10.100.1 255.255.255.0|interface f0/0.20|encap dot1q 20 --> !!! VOICE VLAN !!!|ip address 10.10.200.1 255.255.255.0
6. What are the base telephony-service commands for CME?
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
1 ... this is not optional!
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Ccm-manager music-on-hold
7. How do you disable KPML?
Assign a logout-profile to the ephone.
Assign SIP Dial Rules
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
8. What are the commands to create the L3 routing interface for VLANS (SVI)?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Int vlan 130|ip address 10.10.101.1 255.255.255.0|int vlan 240|ip address 10.10.201.1 255.255.255.0
#voice class h323 1| #h225 timeout tcp establish 3||#dial-peer voice 3000 voip| #destination-pattern 3...| # voice-class h323 1| #session target ipv4:10.1.5.3 (sub)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #pre
9. What does <i>ccm-manager config server [IP]</ip> do?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Automatically configures the MGCP GW for you.
...
Create 2 voip dial-peers - one the Sub and one to the Pub (the Pub with a preference of 1). Then create a <i>voice class h323</i>and set the <i>h225 timeout</i> value so it will hunt between the two.
10. What are the commands to ensure an H323 GW always uses the Sub as primary and Pub as a backup?
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec <i>Disable</i>
#voice class h323 1| #h225 timeout tcp establish 3||#dial-peer voice 3000 voip| #destination-pattern 3...| # voice-class h323 1| #session target ipv4:10.1.5.3 (sub)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #pre
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Bandwidth
11. 'If you want to make changes to any softkeys where do you do it?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
On CUCM it's identical to adding an H323 GW.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
12. When setting up SIP URI where do you configure the CUCM's domain name?'
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Enterprise Parameters --> <i>Organization Top Level Domain</i>|Enterprise Parameters --> <i>Cluster Fully Qualified Domain Name</i>
...
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
13. What is the <i>Enable Enterprise Feature Access</i> Service Parameter used for?
Automatically configures the MGCP GW for you.
Sends the Calling Name.
To enable two-stage dialing.
<i>voice register pool</i>|and|<i>voice register dn</i>
14. In a SIP Dial Rule how do you represent a dialed * instead of it being used as a wildcard?
15. How do you see multicast packets being sent?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Service Parameter --> Block OffNet To OffNet Transfer --> <i>True</i>
Debug ephone moh
16. How do you place SCCP and SIP phones into a single huntgroup?
Via the <i>voice hunt-group parallel</i> command
Service Parameter --> Block OffNet To OffNet Transfer --> <i>True</i>
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
17. On an MGCP GW - if you select <i>Top Down</i> under Channel Selection Order - What does that mean?
Assign SIP Dial Rules
Top Down means that channel 1 will be the first channel used to place outgoing calls.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
CUCM Service Parameters --> Automated Alternate Routing Enable --> <i>True</i>
18. Name 4 useful show commands for active calls.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
...
24kb/s
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
19. Two useful troubleshooting commands for CUCME?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Dtmf-relay h245-alpha
Sends the Calling Name.
<i>sh ephone reg</i>|and|<i>debug voip dialpeer</i>
20. What terminology translates to AAR?
'Use before the ... so XXXX
Voice register dn 1|number 3001|voice register pool 1|number 1 dn 1|id mac 001b.ac02.14de|type 7961|dtmf-relay rtp-nte|description 3214-3005 !!! PHONE BANNER !!!|codec g711u
Reroute when here is WAN congestion.
Top Down means that channel 1 will be the first channel used to place outgoing calls.
21. When do you use translate called? Translate calling?
Ephone-dn 1 <dual / octo>|number 3001|description 3214-3001 !!! PHONE BANNER !!!||ephone 1|mac-address 001b.d4c6.ca99|button 1:1|type 7961|max-calls-per-button 5|busy-trigger-per-button 3
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Matches any length dialed number and truncates it to 4 digits.
22. What is the Service Parameter to allow the phone that is <i>picking ip</i> to auto answer?
Reroute when there is a WAN Outage.
Matches any length dialed number and truncates it to 4 digits.
<i>Auto Call Pickup Enabled</i>
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
23. How do you see the details of calls coming in and out of the PRI?
(config)#service dhcp|(config)#no ip dhcp conflict logging|(config)#ip dhcp excluded-address <low IP> <hi IP>|(config)#ip dhcp-pool <name>|(dhcpconfig)#network <network name> </nn or mask>|(dhcpconfig)#domain-name <domain>|(dhcpconfig)#dns-server <IP
Voice register dn 1| number 4002||voice register pool 1|id mac 0022.0022.0022|type 7961ge|number 1 dn 1|dtmf-relay rtp-nte|no vad
Automatically configures the MGCP GW for you.
Debug isdn q931
24. How do you set the Call Park Reversion Timer?
CUCM Service Parameters --> <i>Call Park Reversion Timer</i>
'Use before the ... so XXXX
Enterprise Parameters --> <i>Organization Top Level Domain</i>|Enterprise Parameters --> <i>Cluster Fully Qualified Domain Name</i>
Enable MOH on the CME.||#<i>telephony service</i>|#<i>moh music-on-hold.au</i>
25. What does Display-IE do?
Sends the Calling Name.
Create 2 voip dial-peers - one the Sub and one to the Pub (the Pub with a preference of 1). Then create a <i>voice class h323</i>and set the <i>h225 timeout</i> value so it will hunt between the two.
Ip domain-name ipexpert.com|network-clock-participate wic 0|isdn switch-type primary-ni||controller t1 0/0/0|pri-group timeslots 1-3 - 24 service mgcp|no shut||int serial 0/0/0:23|isdn bind-l3 ccm-manager|ccm-manager mgcp|ccm-manager redundant-host 1
#interface vlan 130 (voice vlan)| #h323-gateway voip interface| #h323-gateway voip id BR2 ipaddr 10.1.6.1| #h323-gateway voip h323-id UK| #h323-gateway voip bind srcaddr 10.1.130.1
26. A <i>show isdn status</i> shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Re-enter the <i>mgcp bind control</i> and <i>mgcp bind media</i> commands.
<b>CAT IOS</b>|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
27. How do you configure SRST?
Call-manager-fallback</i> or <i>telephony-service mode SRST</i>
Voice register dn 1|number 3001|voice register pool 1|number 1 dn 1|id mac 001b.ac02.14de|type 7961|dtmf-relay rtp-nte|description 3214-3005 !!! PHONE BANNER !!!|codec g711u
Service Parameters --> <i>Mobile Voice Access Number</i>
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
28. What are the steps to integrate CUPS with CUCM?
On CUCM -- UPTSAL||Create Your <b>Users</b>|<b>Phone</b> - set owner id|Create SIP <b>Trunk</b>|<b>SIP Trunk Security Profile|</b>|<b>Application Server</b>|<b>Licensing|</b>|||On CUPS||Work Left to right
Service Parameter --> Block OffNet To OffNet Transfer --> <i>True</i>
#isdn switch-type primary-ni|#network-clock-participate wic 0|#controller t1 0/0/0|#pri-group timeslots 1-3 service mgcp||#ccm-manager mgcp ccm-manager redundant-host [IP]|#ccm-manager fallback-mgcp (for srst)|#ccm-manager moh||#mgcp|#mgcp call-agent
<i>#after-hours block pattern</i>
29. When can you not use a Standard Local Route Group?
(config)#isdn switch-type primary-net5 (or whatever's provided)|(config)#network-clock-participate wic 0||(config)#controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3|(config-controller)#no shut||(config)#int s0/0/0:15 (this is created aft
<b>CAT IOS</b>|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
When configuring TEHO.
<i>#after-hours block pattern</i>
30. How do you prevent toll fraud on CME?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Transfer to external is blocked by default.|To ensure only transfer to internal is allowed - make sure only the following tx pattern is under telephony-service||#telephony service| #transfer-pattern ....
31. An MGCP gateway serving as an SRST router requires what?
Ephone-dn 1 <dual / octo>|number 3001|description 3214-3001 !!! PHONE BANNER !!!||ephone 1|mac-address 001b.d4c6.ca99|button 1:1|type 7961|max-calls-per-button 5|busy-trigger-per-button 3
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
'Service Parameters --> <i>Auto Answer Timer</i>
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
32. What commands are needed to configure the voice register pool in CME?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Voice register dn 1|number 3001|voice register pool 1|number 1 dn 1|id mac 001b.ac02.14de|type 7961|dtmf-relay rtp-nte|description 3214-3005 !!! PHONE BANNER !!!|codec g711u
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Matches any length dialed number and truncates it to 4 digits.
33. What dtmf-relay type do you use for an H323 GW?
Dtmf-relay h245-alpha
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Mobile Connect
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
34. What CM Service needs to be start in Serviceability for MOH to work?
IP Voice Media Streaming App
...
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
It's best to strip digits at the voice port.
35. 'If you're not getting a DHCP address from CUCM what then?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|<i>utils csa disable</i>
TRUE
Automatically configures the MGCP GW for you.
IP Voice Media Streaming App
36. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
<i>voice register pool</i>|and|<i>voice register dn</i>
Re-enter the <i>mgcp bind control</i> and <i>mgcp bind media</i> commands.
37. What is Mobile Voice Access?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
IP Voice Media Streaming App
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
38. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
In the CUCM 7.0.1 Release Notes ... search for <i>restore</i>.
The Called/Calling Transformations are superceded.
Automatically configures the MGCP GW for you.
39. What are the commands to manually configure an MGCP gateway?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Dial-peers
#isdn switch-type primary-ni|#network-clock-participate wic 0|#controller t1 0/0/0|#pri-group timeslots 1-3 service mgcp||#ccm-manager mgcp ccm-manager redundant-host [IP]|#ccm-manager fallback-mgcp (for srst)|#ccm-manager moh||#mgcp|#mgcp call-agent
40. Describe the relationship between route patterns and end devices.
Device Pool Locations
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Route Patterns --> Route Lists --> Route Groups --> Gateways/Trunks|RPs point to Route Lists which contain one or more Route Groups which contain one or more Gateways/Trunks.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
41. Where is it best to manipulate digits for inbound calls?
42. What would force you to use telephony-service to configure SRST?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
...
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
The Called/Calling Transformations are superceded.
43. Is the order of the MRGs in an MRGL significant?
Dtmf-relay h245-alpha
Gatekeeper - zone local GK cisco.com 10.1.6.1 - zone local CUCM cisco.com invia GK outvia GK - zone local BR2 cisco.com invia GK outvia GK
Assign SIP Dial Rules
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
44. What are two caveats to using the <i>ccm-manager config server</ip> command?
Assign SIP Dial Rules
#int lo0|#h323-gateway voip bind srcaddr [IP]||#isdn switch-type primary-ni|#network-clock-particpate wic0||#controller t1 0/0/0|#pri-group timeslots 1-3||#int serial 0/0/0:23|#isdn outgoing display-ie|#isdn b-chan selection order [use opposite of wh
Debug ephone moh
45. <b>By Nov. 16 - 2010</b>||I am happy confident and thankful that I am now a CCIE Voice Certified engineer! My technical knowledge of the Cisco UC portfolio os truly unsurpassed. I have opened up a wealth of opportunities for myself and my family and
...
The Called/Calling Transformations are superceded.
When multiple sites use the same route pattern - do your digit manipulation on a route list.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
46. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
Sends the Calling Name.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Ccm-manager music-on-hold
47. 'How do you inform a SIP phone of NTP information?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
CUCM Service Parameters --> <i>Call Park Reversion Timer</i>
<i>h225 timeout tcp establish 3</i> within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
48. SNR is also known as?
Mobile Connect
Debug isdn q931
(config)#<i>sh cdp neigh detail
(config)#ip domain-name <NAME>|(config)#isdn switch-type primary-ni|(config)#network-clock-participate wic 0||(config)#controller t1 0/0/0|(config-controller)#pri-group timeslots 1-3 - 24 service mgcp|(config-controller)#no shut||(config)#interface s
49. What are the commands to configure a MGCP Gateway? (router)
Ip domain-name ipexpert.com|network-clock-participate wic 0|isdn switch-type primary-ni||controller t1 0/0/0|pri-group timeslots 1-3 - 24 service mgcp|no shut||int serial 0/0/0:23|isdn bind-l3 ccm-manager|ccm-manager mgcp|ccm-manager redundant-host 1
CUCM OS Administration Settings --> NTP Servers
Configure it on the route group through the route list - then it will be local to the route list.
Matches any length dialed number and truncates it to 4 digits.
50. What must you do for a BACD script to work on a CME router?
Precede the # with a > ... so 9011*>#
Create 2 voip dial-peers - one the Sub and one to the Pub (the Pub with a preference of 1). Then create a <i>voice class h323</i>and set the <i>h225 timeout</i> value so it will hunt between the two.
Enable MOH on the CME.||#<i>telephony service</i>|#<i>moh music-on-hold.au</i>
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.