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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. Name 2 commands to verify RSVP functionality.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Sh ip rsvp reservation||sh sccp connections
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Re-enter the <i>mgcp bind control</i> and <i>mgcp bind media</i> commands.
2. How do you configure DHCP in IOS?
When they are explicitly matched in a destination-pattern in a dial-peer.
(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
TRUE
3. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
Matches any length dialed number and truncates it to 4 digits.
On CUCM it's identical to adding an H323 GW.
24kb/s
4. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
It matches a route pattern| Which points to a route list| Which point to a route group| Which contains a GW or Trunk|*Then it needs to match on an incoming VOIP diap-peer (incoming called -number .)
#test voice translation rule 1 <input to test>
Via the <i>voice hunt-group parallel</i> command
Ccm-manager music-on-hold
5. How do you change modes in <i>voice register global</i>?
Precede the # with a > ... so 9011*>#
Default is SRST||<i>mode cme</i> changes to CME|<i>no mode cme</i> changes back to SRST
Allows you to transfer by only pressing the Transfer button once.
Service Parameters --> <i>Mobile Voice Access Number</i>
6. What is Mobile Voice Access?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Create a Route Pattern for the local site and the remote site:||RP-LOC --> PT-REM --> RL-TEHO-LOC||RP-REM --> PT-LOC --> RL-TEHO-REM
<i>Proxy Line Mode</i> has multiple icons on the phone.|<i>Shared Line Mode</i> has only one.
7. When using GK redundancy - what must you do to ensure both SUB and PUB use port 1720 for call-signalling.
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8. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
<i>SIP Route Pattern</i> over a SIP Trunk.
...
9. What would force you to use telephony-service to configure SRST?
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
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Precede the # with a > ... so 9011*>#
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
10. How do you set up redundancy on outbound dial-peers on an H323 gateway?
<i>SIP Route Pattern</i> over a SIP Trunk.
(config)#voice register dialplan
Debug ephone moh
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
11. How do you place SCCP and SIP phones into a single huntgroup?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
(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
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
Via the <i>voice hunt-group parallel</i> command
12. On an H323 GW - how do you adjust the timers for redundancy hunting?
Enable MOH on the CME.||#<i>telephony service</i>|#<i>moh music-on-hold.au</i>
(config)#voice register dialplan
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
<i>h225 timeout tcp establish 3</i> within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
13. On an MGCP GW - if you select <i>Top Down</i> under Channel Selection Order - What does that mean?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Reroute when here is WAN congestion.
Precede the # with a > ... so 9011*>#
Top Down means that channel 1 will be the first channel used to place outgoing calls.
14. What is the <i>Enable Enterprise Feature Access</i> Service Parameter used for?
To enable two-stage dialing.
Precede the # with a > ... so 9011*>#
Sh ccm-manager
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
15. How do you configure CUCM redundancy on an H323 gateway?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
#voice class h323 1| #h225 timeout tcp establish 3||#dial-peer voice 3000 voip| #destination-pattern 3...| #voice-class h323 1| #session target ipv4:(SUB IP)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #voice-clas
Re-enter the <i>mgcp bind control</i> and <i>mgcp bind media</i> commands.
16. 'If you're not getting a DHCP address from CUCM what then?
Reroute when there is a WAN Outage.
(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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|<i>utils csa disable</i>
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec <i>Disable</i>
17. What is the Service Parameter to allow the phone that is <i>picking ip</i> to auto answer?
<i>sh ephone reg</i>|and|<i>debug voip dialpeer</i>
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Dial-peers
<i>Auto Call Pickup Enabled</i>
18. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
<i>Proxy Line Mode</i> has multiple icons on the phone.|<i>Shared Line Mode</i> has only one.
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
Voice register global|mode cme|source-address <IP>|max-dn <NUM>|max-pool <NUM>|tftp-path flash:/<PATH>|create profile||NOTE: You have to do a create profile every time you change the voice register pool
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
19. Where can you assign the AAR Group?
(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
Enable MOH on the CME.||#<i>telephony service</i>|#<i>moh music-on-hold.au</i>
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
8kb/s
20. What does Display-IE do?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Sends the Calling Name.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
21. How do you configure an MGCP GW? (router side)
(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
Enable MOH on the CME.||#<i>telephony service</i>|#<i>moh music-on-hold.au</i>
Sh ccm-manager
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
22. What is call-forward pattern used for?
Call forwarding between voip to voip (when CUBE is in play)
(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
Call-manager-fallback</i> or <i>telephony-service mode SRST</i>
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
23. How do you configure class of service (CoS) in CUCM? CME?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Call Simulator. You can use to validate path from router to the PSTN.
(config)#isdn switch-type primary-net5|(config)#network-clock-participate wic 0||(config)#Controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3 !!!Get the PRI up!!!|(config-controller)#no shut||(config)#int s0/0/0:15|(config-if)#isdn outgoin
Max-dn|max-ephone|ip source-address
24. <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 is truly unsurpassed. I have opened up a wealth of opportunities for myself and my family and
...
When configuring TEHO.
Re-enter the <i>mgcp bind control</i> and <i>mgcp bind media</i> commands.
(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
25. If you have an H323 Gateway at a siet where the phones are controlled by CUCM - what do you need from a dial-peer perspective?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Single Number Reach (Mobile Connect)
You need pots dial-peers for incoming calls and you need a voip dial-peer pointing to the CUCM so the H323 GW and connect the call to those phones.
Top Down means that channel 1 will be the first channel used to place outgoing calls.
26. What are the commands to set up the PRI?
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27. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
#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
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.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Create a Route Pattern for the local site and the remote site:||RP-LOC --> PT-REM --> RL-TEHO-LOC||RP-REM --> PT-LOC --> RL-TEHO-REM
28. When do you use translate called? Translate calling?
...
Bandwidth
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
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
29. What's the difference between AAR and SRST?
Sends the Calling Name.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Max-dn|max-ephone|ip source-address
30. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
(config)#voice register dialplan
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
31. What are the basic ephone-dn and ephone commands?
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
8kb/s
Max-dn|max-ephone|ip source-address
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
32. What kind of relationship does an MGCP gateway have with CUCM?
Master/Slave relationship. CUCM controls it.
Matches any length dialed number and truncates it to 4 digits.
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
Outbound dial-peers
33. What are the commands to configure an H323 GW?
Default is SRST||<i>mode cme</i> changes to CME|<i>no mode cme</i> changes back to SRST
Apply it to the ephone.
#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
<i>voice translation-profile</i>|and|<i>voice translation-rule</i>
34. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
Default is SRST||<i>mode cme</i> changes to CME|<i>no mode cme</i> changes back to SRST
In the CUCM 7.0.1 Release Notes ... search for <i>restore</i>.
Dial-peers
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
35. SNR is also known as?
Mobile Connect
TRUE
<i>h225 timeout tcp establish 3</i> within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
IP Voice Media Streaming App
36. 'If you want to make changes to any softkeys where do you do it?
...
Reroute when there is a WAN Outage.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
37. How would you enable security on a GK?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
In CUCM - configure CFUR to point to it's E164 number.
CUCM Service Parameters --> <i>Call Park Reversion Timer</i>
38. What are the commands to configure NTP in IOS?
<b>Access Port Method</b>||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
#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
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
39. How do you configure a gateway to register with gatekeeper?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
#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
Assign a logout-profile to the ephone.
Assign SIP Dial Rules
40. What's the best way to perform digit manipulation on a route group?
Configure it on the route group through the route list - then it will be local to the route list.
Allows you to transfer by only pressing the Transfer button once.
(config)#voice register dialplan
41. How do you configure AAR?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
42. What are the commands to configure a T1/E1 PRI?
When they are explicitly matched in a destination-pattern in a dial-peer.
It's best to strip digits at the voice port.
(config)#isdn switch-type primary-net5|(config)#network-clock-participate wic 0||(config)#Controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3 !!!Get the PRI up!!!|(config-controller)#no shut||(config)#int s0/0/0:15|(config-if)#isdn outgoin
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
43. How do you configure phone ports on a 3750?
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
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
<b>Access Port Method</b>||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
24kb/s
44. What are the base telephony-service commands for CME?
<i>voice translation-profile</i>|and|<i>voice translation-rule</i>
Precede the # with a > ... so 9011*>#
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Reroute when there is a WAN Outage.
45. When a device is roaming to a different site How does it get the <i>Roaming Sensitive Settings</i> from the Device Pool?
The + character is not supported on a VOIP dial-peer.||So you'll need to add back on the POTS dial-peer before it gets to the PSTN via a voice translation-rule.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
The Called/Calling Transformations are superceded.
1 ... this is not optional!
46. How do you set the Call Park Reversion Timer?
CUCM Service Parameters --> <i>Call Park Reversion Timer</i>
Precede the # with a > ... so 9011*>#
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
47. What is SIP URI?
Bandwidth
#voice service voip| #no supplementary-service h225-notify cid-update
At the CLI: <i>utils ntp status</i>
Phone number followed by domain name.|i.e. 3006@ipxcme.com
48. What does the <i>Transfer On-hook Enabled</i> Service Parameter do?
Allows you to transfer by only pressing the Transfer button once.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
49. On the RDP What is the CSS used for?
Mobile Voice Access
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Matches any length dialed number and truncates it to 4 digits.
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
50. What CUCM services should you activate?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Voice register global|mode cme|source-address <IP>|max-dn <NUM>|max-pool <NUM>|tftp-path flash:/<PATH>|create profile||NOTE: You have to do a create profile every time you change the voice register pool
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Dtmf-relay h245-alpha