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CCIE Voice Test

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 terminology translates to SRST?
Use the alias static configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)
In CUCM - configure CFUR to point to it's E164 number.
Reroute when there is a WAN Outage.
Debug ephone moh

2. How do you ensure that G.711 only is used?
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
#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
(config)#voice register dialplan
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

3. How do you see the details of calls coming in and out of the PRI?
Ccm-manager music-on-hold
8kb/s
Debug isdn q931
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.

4. Calls coming from CUCM to PSTN need what?
Precede the # with a > ... so 9011*>#
On CUCM -- UPTSAL||Create Your Users|Phone - set owner id|Create SIP Trunk|SIP Trunk Security Profile||Application Server|Licensing||||On CUPS||Work Left to right
Outbound dial-peers
Reroute when there is a WAN Outage.

5. What are the commands to configure SRST in fallback?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Put them in a route list.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

6. What types of digit manipulation can you perform at the route pattern?
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
...
Mobile Connect
When multiple sites use the same route pattern - do your digit manipulation on a route list.

7. What do you need to do to activate the CME GUI?
Find the GUI Files - show flash | i .html|ip http server|ip http path flash:/<PATH TO FILES>||telephony service|web admin system name admin pass cisco|dn-webedit
To notify SIP Phones of NTP
Single Number Reach (Mobile Connect)
When configuring TEHO.

8. How do you configure an MGCP GW? (router side)
Via the voice hunt-group parallel command
(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
Device Pool Locations
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

9. What CM Service needs to be start in Serviceability for MOH to work?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
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
IP Voice Media Streaming App

10. How do you prevent toll fraud on CME?
Automatically configures the MGCP GW for you.
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 ....
24kb/s
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

11. How do you prioritize route groups?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Put them in a route list.
Debug ephone moh
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

12. How do you disable KPML?
Assign SIP Dial Rules
voice translation-profile|and|voice translation-rule
#voice service voip| #no supplementary-service h225-notify cid-update
Reroute when there is a WAN Outage.

13. What are the commands to configure NTP in IOS?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
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
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)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

14. When are digits stripped in a gateway?
When they are explicitly matched in a destination-pattern in a dial-peer.
(config)#sh cdp neigh detail
Dial-peers
IP Voice Media Streaming App

15. How do you configure CUCM redundancy on an H323 gateway?
#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
#voice service voip| #no supplementary-service h225-notify cid-update
Via the voice hunt-group parallel command
#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

16. If you're using Called/Calling Party Transformations at the Route Pattern and tranformations at the route list ... What does the RP affect and What does the RL affect?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Create 2 voip dial-peers - one the Sub and one to the Pub (the Pub with a preference of 1). Then create a voice class h323and set the h225 timeout value so it will hunt between the two.
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 ....
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

17. How do you prevent H323 caller-id updates to CUCM
#voice service voip| #no supplementary-service h225-notify cid-update
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Re-enter the mgcp bind control and mgcp bind media commands.
(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|(config-controller)#no shut||(config)#voice service voip|(conf-voi-serv)#sip|(conf-serv-sip)#bind

18. 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 restore.
To enable two-stage dialing.

SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

19. When using GK redundancy - what must you do to ensure both SUB and PUB use port 1720 for call-signalling.

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20. What are the steps to configure Single Number Reach and Mobile Voice Access?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

#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

21. 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
Automatically configures the MGCP GW for you.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Max-dn|max-ephone|ip source-address

22. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
The Called/Calling Transformations are superceded.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
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

23. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
Bottom up - to prevent glare.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Ccm-manager music-on-hold
Call Simulator. You can use to validate path from router to the PSTN.

24. How do you configure SRST?
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 ....
Call-manager-fallback or telephony-service mode SRST
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Auto Call Pickup Enabled

25. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
Find the GUI Files - show flash | i .html|ip http server|ip http path flash:/<PATH TO FILES>||telephony service|web admin system name admin pass cisco|dn-webedit
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
SIP Route Pattern over a SIP Trunk.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

26. How would you verify that DHCP is working in IOS?
CUCM Service Parameters --> Call Park Reversion Timer
Debug isdn q931
When configuring TEHO.
(config)#sh cdp neigh detail

27. 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
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
(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
(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

28. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
On CUCM it's identical to adding an H323 GW.
voice register pool|and|voice register dn
Precede the # with a > ... so 9011*>#
TRUE

29. How do you set the inter-digit timeout for SIP phones in CME?

(config)#voice register dialplan
Apply it to the ephone.
...

30. What's the best way to perform digit manipulation on a route group?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Configure it on the route group through the route list - then it will be local to the route list.
#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
...

31. What is the bit rate for a G.729 call excluding layer 2?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
8kb/s
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Matches any length dialed number and truncates it to 4 digits.

32. By Nov. 16 - 2010||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
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Show ccm-manager
...

33. When can you not use a Standard Local Route Group?
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
When configuring TEHO.

34. How do you configure DHCP in IOS?
(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
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.
Show ccm-manager
Dial-peers

35. On an MGCP GW - how could you see the primary and backup CUCM servers?
Use the alias static configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)
Show ccm-manager
Sh ccm-manager
Matches any length dialed number and truncates it to 4 digits.

36. How do you create a trunk on the router side?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Apply voice-class codec
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
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

37. How do you configure phone ports on an ESW?
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
(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
(config)#sh cdp neigh detail
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

38. What does KPML do?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
1 ... this is not optional!
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 ....
Automatically configures the MGCP GW for you.

39. What is Phone NTP Reference used for?
To notify SIP Phones of NTP
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Mobile Connect
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

40. Describe the relationship between route patterns and end devices.
Sh ip rsvp reservation||sh sccp connections
Automatically configures the MGCP GW for you.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
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.

41. What is a best practice for digit manipulation - in regards to H323 GWs?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Apply voice-class codec
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

42. What terminology translates to AAR?
Reroute when here is WAN congestion.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
When they are explicitly matched in a destination-pattern in a dial-peer.
#test voice translation rule 1 <input to test>

43. How do you see multicast packets being sent?
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 .)

(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
Debug ephone moh

44. How do you setup AutoRegistration in CUCM?
(config)#sh cdp neigh detail
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
It's best to strip digits at the voice port.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

45. How do you place SCCP and SIP phones into a single huntgroup?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Via the voice hunt-group parallel command
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
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 ....

46. What must you do for a BACD script to work on a CME router?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
...
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

47. When setting up SIP URI where do you configure the CUCM's domain name?'
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

48. When do you do digit manipulation at the route pattern as opposed to the route list?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
When multiple sites use the same route pattern - do your digit manipulation on a route list.
At the CLI: utils ntp status
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

49. Does CUCM support RSVP natively?
(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|(config-controller)#no shut||(config)#voice service voip|(conf-voi-serv)#sip|(conf-serv-sip)#bind
Auto Call Pickup Enabled
Reroute when there is a WAN Outage.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

50. What is the full E164 format?
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
...
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Debug ephone moh