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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. What are the steps to configure Single Number Reach and Mobile Voice Access?
Sh ccm-manager
CUCM Service Parameters --> <i>Call Park Reversion Timer</i>
1 ... this is not optional!
2. How do you allow H323 calls to be preserved should the primary H323 GW fail?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Max-dn|max-ephone|ip source-address
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
3. How do you ensure that G.711 only is used?
On CUCM it's identical to adding an H323 GW.
Enterprise Parameters --> <i>Organization Top Level Domain</i>|Enterprise Parameters --> <i>Cluster Fully Qualified Domain Name</i>
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec <i>Disable</i>
Dtmf-relay h245-alpha
4. How do you disable KPML?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Assign SIP Dial Rules
Default is SRST||<i>mode cme</i> changes to CME|<i>no mode cme</i> changes back to SRST
(config)#<i>sh cdp neigh detail
5. When configuring a Gatekeep-controlled trunk - what do you do with the <i>Wait for Far End H.245 TCS</i> option?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
#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
Enterprise Parameters --> <i>Organization Top Level Domain</i>|Enterprise Parameters --> <i>Cluster Fully Qualified Domain Name</i>
6. Calls coming from CUCM to PSTN need what?
Outbound dial-peers
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
Enterprise Parameters --> <i>Organization Top Level Domain</i>|Enterprise Parameters --> <i>Cluster Fully Qualified Domain Name</i>
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
7. How do you use the # as a string terminator within a SIP Dial Rule?
Precede the # with a > ... so 9011*>#
...
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
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
8. What does the <i>Transfer On-hook Enabled</i> Service Parameter do?
(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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
SERVICE PARAMETER > Device Name of GK0controlled Trunk That Will Use Port 1720 > US_Trunk (or whatever you're using)||> Host Name/IP of GK That Will Use RAS UDP Port 1719 > (IP of GK) ||BE SURE TO RESTART THE TRUNK in CUCM and possibly the CUCM Servi
Allows you to transfer by only pressing the Transfer button once.
9. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
To enable two-stage dialing.
<i>Proxy Line Mode</i> has multiple icons on the phone.|<i>Shared Line Mode</i> has only one.
Outbound dial-peers
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec <i>Disable</i>
10. What dtmf-relay type do you use for an H323 GW?
Debug isdn q931
Dtmf-relay h245-alpha
TRUE
11. How do you prevent toll fraud on CUCM?
(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
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
12. How do you set the inter-digit timeout for SIP phones in CME?
At the CLI: <i>utils ntp status</i>
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
(config)#voice register dialplan
Matches any length dialed number and truncates it to 4 digits.
13. What commands are needed to configure the voice register pool in CME?
#test voice translation rule 1 <input to test>
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
The Called/Calling Transformations are superceded.
Via the <i>voice hunt-group parallel</i> command
14. 'If you want to make changes to any softkeys where do you do it?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Sends the Calling Name.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
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 ....
15. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
Mobile Voice Access
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
16. What's the difference between AAR and SRST?
<i>Auto Call Pickup Enabled</i>
Default is SRST||<i>mode cme</i> changes to CME|<i>no mode cme</i> changes back to SRST
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
17. What is the <i>Enable Enterprise Feature Access</i> Service Parameter used for?
Max-dn|max-ephone|ip source-address
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
To enable two-stage dialing.
Use the <i>alias static</i> configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)
18. How do you configure class of service (CoS) in CUCM? CME?
#voice service voip| #no supplementary-service h225-notify cid-update
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Service Parameters --> <i>Mobile Voice Access Number</i>
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
19. How do you maintain 4-digit dialing to phones that are running in an SRST scenario (WAN outage)?
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20. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
<i>voice translation-profile</i>|and|<i>voice translation-rule</i>
<i>SIP Route Pattern</i> over a SIP Trunk.
Show ccm-manager
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
21. What are the commands to configure SRST in fallback?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
(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|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
...
22. How do you verify where MOH is being served up from?
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23. What should you configure before entering auto qos?
Bandwidth
8kb/s
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
24. Where do you use VIA zone?
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
<i>voice register pool</i>|and|<i>voice register dn</i>
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.
When multiple sites use the same route pattern - do your digit manipulation on a route list.
25. SNR is also known as?
<i>#after-hours block pattern</i>
Mobile Connect
Assign SIP Dial Rules
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
26. How do you test a Voice Translation Rule?
#test voice translation rule 1 <input to test>
Max-dn|max-ephone|ip source-address
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
To notify SIP Phones of NTP
27. When do you use translate called? Translate calling?
SERVICE PARAMETER > Device Name of GK0controlled Trunk That Will Use Port 1720 > US_Trunk (or whatever you're using)||> Host Name/IP of GK That Will Use RAS UDP Port 1719 > (IP of GK) ||BE SURE TO RESTART THE TRUNK in CUCM and possibly the CUCM Servi
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
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
Bandwidth
28. A <i>show isdn status</i> shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Service Parameter --> Block OffNet To OffNet Transfer --> <i>True</i>
Re-enter the <i>mgcp bind control</i> and <i>mgcp bind media</i> commands.
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
Sh ip rsvp reservation||sh sccp connections
29. What are the commands to configure an H323 GW?
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 ....
Reroute when there is a WAN Outage.
Mobile Connect
#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
30. How would you enable security on a GK?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
1 ... this is not optional!
Call-manager-fallback</i> or <i>telephony-service mode SRST</i>
31. When dealing with an MGCP GW there is no intelligence on the router. How would you strip an incoming Called Number from 10 to 4 digits?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
#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
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Single Number Reach (Mobile Connect)
32. How do you block calls under call-manager-fallback?
1 ... this is not optional!
Enable MOH on the CME.||#<i>telephony service</i>|#<i>moh music-on-hold.au</i>
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
<i>#after-hours block pattern</i>
33. How do you enable Extension Mobility for a device in CME?
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
Assign a logout-profile to the ephone.
'Service Parameters --> <i>Auto Answer Timer</i>
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
34. What does KPML do?
Reroute when there is a WAN Outage.
Use the <i>alias static</i> configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
To notify SIP Phones of NTP
35. What are the commands to create vlans on an ESW?
When configuring TEHO.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
<i>SIP Route Pattern</i> over a SIP Trunk.
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.
36. What are the commands to ensure an H323 GW always uses the Sub as primary and Pub as a backup?
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.
(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
Default is SRST||<i>mode cme</i> changes to CME|<i>no mode cme</i> changes back to SRST
#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
37. What does <i>ccm-manager config server [IP]</ip> do?
Sh ip rsvp reservation||sh sccp connections
Automatically configures the MGCP GW for you.
The <i>name</i> configuration field in ephone-dn and voice register dn
Apply it to the ephone.
38. How do you configure AAR?
To enable two-stage dialing.
<b>Access Port Method</b>||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
39. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
...
Call forwarding between voip to voip (when CUBE is in play)
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Phone number followed by domain name.|i.e. 3006@ipxcme.com
40. How do you verify that NTP is working on the CUCM server?
'Use before the ... so XXXX
At the CLI: <i>utils ntp status</i>
Enterprise Parameters --> <i>Organization Top Level Domain</i>|Enterprise Parameters --> <i>Cluster Fully Qualified Domain Name</i>
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
41. How do you enable AAR system wide?
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 - Set to True
CUCM Service Parameters --> Automated Alternate Routing Enable --> <i>True</i>
Bottom up - to prevent glare.
42. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
In the CUCM 7.0.1 Release Notes ... search for <i>restore</i>.
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
Reroute when here is WAN congestion.
43. Maximum Wait Time for Desk Pickup?
The <i>name</i> configuration field in ephone-dn and voice register dn
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
44. How do you configure an MGCP GW? (router side)
<b>CAT IOS</b>|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
(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
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
<i>voice translation-profile</i>|and|<i>voice translation-rule</i>
45. Where is it best to manipulate digits for inbound calls?
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46. 'If you're not getting a DHCP address from CUCM what then?
Re-enter the <i>mgcp bind control</i> and <i>mgcp bind media</i> commands.
Reroute when here is WAN congestion.
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|<i>utils csa disable</i>
47. 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.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
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
48. On the RDP What is the Rerouting CSS used for?
Single Number Reach (Mobile Connect)
CUCM Service Parameters --> Automated Alternate Routing Enable --> <i>True</i>
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
(config)#<i>sh cdp neigh detail
49. What are the commands to manually configure an MGCP gateway?
#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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Sh ip rsvp reservation||sh sccp connections
50. What are two caveats to using the <i>ccm-manager config server</ip> command?
Call-manager-fallback</i> or <i>telephony-service mode SRST</i>
<i>#after-hours block pattern</i>
(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
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