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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. In CME Where is the Calling Name derived from?
voice translation-profile|and|voice translation-rule
The name configuration field in ephone-dn and voice register dn
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.

2. When are digits stripped in a gateway?
(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
When they are explicitly matched in a destination-pattern in a dial-peer.
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
'Service Parameters --> Auto Answer Timer

3. Calls coming from CUCM to PSTN need what?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Outbound dial-peers
Ccm-manager music-on-hold

4. What kind of relationship does an MGCP gateway have with CUCM?
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.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Show ccm-manager
Master/Slave relationship. CUCM controls it.

5. What are the commands to create vlans on an ESW?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
voice register pool|and|voice register dn
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

6. What are the commands to configure an H323 GW?
#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
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Re-enter the mgcp bind control and mgcp bind media commands.
When they are explicitly matched in a destination-pattern in a dial-peer.

7. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
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
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Debug isdn q931

8. Is the order of the MRGs in an MRGL significant?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Debug ephone moh
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

9. What terminology translates to SRST?
Reroute when there is a WAN Outage.
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
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

10. What are the base telephony-service commands for CME?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
#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
Call-manager-fallback or telephony-service mode SRST

11. What are the commands to configure SRST in fallback?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
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 Parameters --> Auto Answer Timer

12. When a CUCM device dials a number - what happens?
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)#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
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

13. What must you do for a BACD script to work on a CME router?
Debug ephone moh
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
#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
Apply voice-class codec

14. What are the commands to configure a MGCP Gateway? (router)
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
(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
SIP Dial Rules
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

15. What are the basic SCCP Commands fro telephony-service in CUCME?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Assign a logout-profile to the ephone.
Device Pool Locations

16. How do you enable AAR?
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> Automated Alternate Routing Enable > True
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

17. How do you change modes in voice register global?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
#test voice translation rule 1 <input to test>

18. What are the commands to configure a T1/E1 PRI?
To enable two-stage dialing.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
(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

19. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
SIP Route Pattern over a SIP Trunk.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
8kb/s
'Use before the ... so XXXX

20. What do you need to do to activate the CME GUI?
Reroute when there is a WAN Outage.
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
Debug ephone moh
Precede the # with a > ... so 9011*>#

21. How do you place SCCP and SIP phones into a single huntgroup?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Top Down means that channel 1 will be the first channel used to place outgoing calls.
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
Via the voice hunt-group parallel command

22. What should you configure before entering auto qos?
Call forwarding between voip to voip (when CUBE is in play)

Bandwidth
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

23. When can you not use a Standard Local Route Group?
The name configuration field in ephone-dn and voice register dn
SIP Dial Rules
When configuring TEHO.
...

24. How do you configure an MGCP GW? (router side)
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Put them in a route list.
(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
When they are explicitly matched in a destination-pattern in a dial-peer.

25. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Service Parameter --> Block OffNet To OffNet Transfer --> True
Need to Know||Anytime you have an external call - it needs to match on a route pattern.

Re-enter the mgcp bind control and mgcp bind media commands.

26. How can you confirm the MGCP GW is registered to CUCM - in IOS?
#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
Bottom up - to prevent glare.
Sh ccm-manager
When configuring TEHO.

27. How do you disable KPML?
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
#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
Dial-peers
Assign SIP Dial Rules

28. What's the best way to do digit manipulation on an IOS gateway?

IP Voice Media Streaming App
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
voice translation-profile|and|voice translation-rule

29. What is call-forward pattern used for?
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
#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
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Call forwarding between voip to voip (when CUBE is in play)

30. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
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.
Debug isdn q931
Master/Slave relationship. CUCM controls it.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

31. How do you configure a SIP Trunk? (router side)
(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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Automatically configures the MGCP GW for you.
Put them in a route list.

32. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

33. How do you create a trunk on the switch side?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

34. How do you enable AAR system wide?
#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
Phone number followed by domain name.|i.e. 3006@ipxcme.com
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

35. 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
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
On CUCM it's identical to adding an H323 GW.
The Called/Calling Transformations are superceded.

36. What does ccm-manager config server [IP]</ip> do?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Automatically configures the MGCP GW for you.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

37. Name 4 useful show commands for active calls.

CUCM OS Administration Settings --> NTP Servers
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
SIP Dial Rules

38. Which takes precedence Device Locations or Device Pool Locations?
#voice service voip| #no supplementary-service h225-notify cid-update
Device Pool Locations
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
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

39. If you can't use a tech-prefix or default tech-prefix how do you get around the fact that CUCM does not register it's endpoint to GK?
CUCM OS Administration Settings --> NTP Servers
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
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)
(config)#sh cdp neigh detail

40. How do you support multiple codecs on a dialpeer?
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 forwarding between voip to voip (when CUBE is in play)
Apply voice-class codec
Top Down means that channel 1 will be the first channel used to place outgoing calls.

41. What commands are needed to configure the voice register pool in CME?
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
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
#test voice translation rule 1 <input to test>
Debug isdn q931

42. 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?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Sends the Calling Name.
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Service Parameter --> Block OffNet To OffNet Transfer --> True

43. What is Mobile Voice Access?
In the CUCM 7.0.1 Release Notes ... search for restore.
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 I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
#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

44. How do you verify where MOH is being served up from?

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45. If you're using Called/Calling Party Transformations at the Route Pattern - what happens if you do Digit manipulation at the route list?
24kb/s
The Called/Calling Transformations are superceded.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

46. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
...
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
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
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

47. How do you prioritize route groups?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Put them in a route list.

48. What are the steps to integrate CUPS with CUCM?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
(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
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
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

49. 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.
Call Simulator. You can use to validate path from router to the PSTN.
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)

50. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
...
In the CUCM 7.0.1 Release Notes ... search for restore.
(config)#sh cdp neigh detail