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CCIE Voice Test

Instructions:

Answer 50 questions in 15 minutes.
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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 3 mandatory commands within call-manager-fallback?
Max-dn|max-ephone|ip source-address
Sh ccm-manager
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

2. How do you create a trunk on the switch side?
Bandwidth
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
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
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)

3. How do you prevent toll fraud on CUCM?
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
SIP Dial Rules
Automatically configures the MGCP GW for you.

4. What must you do for a BACD script to work on a CME router?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Master/Slave relationship. CUCM controls it.
On CUCM it's identical to adding an H323 GW.
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

5. What CUCM services should you activate?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
...
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
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.

6. 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 os truly unsurpassed. I have opened up a wealth of opportunities for myself and my family and
...
Master/Slave relationship. CUCM controls it.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

7. What commands are needed to configure the voice register pool in CME?
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
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
(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
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

8. What does rule 1 /^.*(....$)/ /1/ do?
Call-manager-fallback or telephony-service mode SRST
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Matches any length dialed number and truncates it to 4 digits.
(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

9. Where is it best to manipulate digits for inbound calls?

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10. 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?
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.
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
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
SERVICE PARAMETER> Automated Alternate Routing Enable > True

11. 'If you want to make changes to any softkeys where do you do it?

8kb/s
#after-hours block pattern
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

12. On an MGCP GW - how could you see the primary and backup CUCM servers?
#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
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Mobile Voice Access
Show ccm-manager

13. What is CSIM?
Call Simulator. You can use to validate path from router to the PSTN.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
When configuring TEHO.
(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

14. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
(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
Phone number followed by domain name.|i.e. 3006@ipxcme.com
In the CUCM 7.0.1 Release Notes ... search for restore.

15. How do you set the inter-digit timeout for SIP phones in CME?
SIP Route Pattern over a SIP Trunk.
(config)#voice register dialplan
Sh ip rsvp reservation||sh sccp connections
Ccm-manager music-on-hold

16. What does KPML do?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
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 ....
(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
The name configuration field in ephone-dn and voice register dn

17. How do you verify that NTP is working on the CUCM server?
Apply voice-class codec
At the CLI: utils ntp status
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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

18. 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
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
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
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

19. What terminology translates to AAR?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Debug isdn q931
Reroute when here is WAN congestion.

20. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Re-enter the mgcp bind control and mgcp bind media commands.
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.
Reroute when there is a WAN Outage.
Higher

21. Where can you assign the AAR Group?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
#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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
SIP Route Pattern over a SIP Trunk.

22. What is a best practice for digit manipulation - in regards to H323 GWs?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Outbound dial-peers
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
voice register pool|and|voice register dn

23. How do you allow the Calling Name to be sent to the PSTN on a router?
To notify SIP Phones of NTP
Phone number followed by domain name.|i.e. 3006@ipxcme.com
voice translation-profile|and|voice translation-rule
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie

24. What terminology translates to SRST?
Reroute when there is a WAN Outage.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
'Service Parameters --> Auto Answer Timer
Single Number Reach (Mobile Connect)

25. How do you configure SRST?
(config)#voice register dialplan
#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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Call-manager-fallback or telephony-service mode SRST

26. 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?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Reroute when there is a WAN Outage.
Sh ip rsvp reservation||sh sccp connections
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)

27. What are the commands to configure SIP phones in CME?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
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
Mobile Voice Access
SIP Dial Rules

28. What dtmf-relay type do you use for an H323 GW?
Apply it to the ephone.
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 ....
Dtmf-relay h245-alpha
CUCM Service Parameters --> Call Park Reversion Timer

29. Name 2 commands to verify RSVP functionality.
#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
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
SIP Dial Rules
Sh ip rsvp reservation||sh sccp connections

30. What does an H323 GW require that MGCP GWs do not?

Dial-peers
(config)#sh cdp neigh detail
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

31. When a CUCM device dials a number - what happens?
'Service Parameters --> Auto Answer Timer
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
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 .)
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

32. How do you get around relying on DNS for your CUCMs?
In the CUCM 7.0.1 Release Notes ... search for restore.
Bottom up - to prevent glare.
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

33. How do you prevent toll fraud on CME?
Service Parameters --> Mobile Voice Access Number
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 ....
Device Pool Locations

34. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
Dtmf-relay h245-alpha
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
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
voice register pool|and|voice register dn

35. 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.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
(config)#sh cdp neigh detail
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

36. What are the commands to ensure an H323 GW always uses the Sub as primary and Pub as a backup?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
#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. How do you create a trunk on the router side?
(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
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
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 ....

38. What does Display-IE do?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Sends the Calling Name.
#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
When multiple sites use the same route pattern - do your digit manipulation on a route list.

39. How do you set the Call Park Reversion Timer?
#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
CUCM Service Parameters --> Call Park Reversion Timer
Ccm-manager music-on-hold
Apply voice-class codec

40. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
To enable two-stage dialing.
Put them in a route list.

41. How do you configure a gateway to register with gatekeeper?
Apply voice-class codec
Bottom up - to prevent glare.
Service Parameters --> Mobile Voice Access Number
#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

42. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
Mobile Connect
When configuring TEHO.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Debug ephone moh

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

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44. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
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
Via the voice hunt-group parallel command
Re-enter the mgcp bind control and mgcp bind media commands.

45. In CME Where is the Calling Name derived from?
The name configuration field in ephone-dn and voice register dn
#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 Simulator. You can use to validate path from router to the PSTN.
Ccm-manager music-on-hold

46. When do you use translate called? Translate calling?
IP Voice Media Streaming App
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 translation-profile|and|voice translation-rule
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

47. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
Ccm-manager music-on-hold
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Automatically configures the MGCP GW for you.

48. What does the Transfer On-hook Enabled Service Parameter do?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
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.
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

49. Where do you use VIA zone?
Service Parameters --> Mobile Voice Access Number
(config)#voice register dialplan
Precede the # with a > ... so 9011*>#
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

50. How do you maintain 4-digit dialing to phones that are running in an SRST scenario (WAN outage)?

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