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CCIE Voice Test

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Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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1. What does the Transfer On-hook Enabled Service Parameter do?
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Allows you to transfer by only pressing the Transfer button once.
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
CUCM Service Parameters --> Automated Alternate Routing Enable --> True

2. On the RDP What is the CSS used for?
Mobile Voice Access
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
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.
Master/Slave relationship. CUCM controls it.

3. What CM Service needs to be start in Serviceability for MOH to work?
IP Voice Media Streaming App
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)
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
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 .)

4. How do you verify that NTP is working on the CUCM server?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
At the CLI: utils ntp status
Device Pool Locations
Dtmf-relay h245-alpha

5. When do you do digit manipulation at the route pattern as opposed to the route list?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Bottom up - to prevent glare.
Max-dn|max-ephone|ip source-address
Call-manager-fallback or telephony-service mode SRST

6. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Call Simulator. You can use to validate path from router to the PSTN.
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
#test voice translation rule 1 <input to test>

7. When are digits stripped in a gateway?
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.
Dial-peers
When they are explicitly matched in a destination-pattern in a dial-peer.
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.

8. What dtmf-relay type do you use for an H323 GW?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Dtmf-relay h245-alpha
Call forwarding between voip to voip (when CUBE is in play)
Single Number Reach (Mobile Connect)

9. What is SIP URI?
Reroute when here is WAN congestion.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

10. What is a best practice for digit manipulation - in regards to H323 GWs?
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)
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
The Called/Calling Transformations are superceded.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

11. How do you configure a gateway to register with gatekeeper?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
CUCM Service Parameters --> Call Park Reversion Timer
#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
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

12. What are the commands to configure a MGCP Gateway? (router)
Service Parameters --> Mobile Voice Access Number
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
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
Max-dn|max-ephone|ip source-address

13. How do you prevent H323 caller-id updates to CUCM
Service Parameter --> Block OffNet To OffNet Transfer --> True
#test voice translation rule 1 <input to test>
#voice service voip| #no supplementary-service h225-notify cid-update
When they are explicitly matched in a destination-pattern in a dial-peer.

14. What is Mobile Voice Access?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Debug isdn q931
Dial-peers

15. 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 - configure CFUR to point to it's E164 number.
IP Voice Media Streaming App
'Service Parameters --> Auto Answer Timer

16. Where can you assign the AAR Group?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Re-enter the mgcp bind control and mgcp bind media commands.
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
IP Voice Media Streaming App

17. What are the steps to integrate CUPS with CUCM?
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
voice register pool|and|voice register dn
Ccm-manager music-on-hold
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

18. How do you get around relying on DNS for your CUCMs?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
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
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

19. What are the basic ephone-dn and ephone commands?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
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
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
(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

20. What are the commands to configure a SIP phone in CUCME?
Service Parameter --> Block OffNet To OffNet Transfer --> True
1 ... this is not optional!
The name configuration field in ephone-dn and voice register dn
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

21. On an H323 GW - how do you adjust the timers for redundancy hunting?
CUCM Service Parameters --> Call Park Reversion Timer
sh ephone reg|and|debug voip dialpeer
When they are explicitly matched in a destination-pattern in a dial-peer.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

22. 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?
(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
SERVICE PARAMETER> Automated Alternate Routing Enable > True
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

23. What is the Service Parameter to allow the phone that is picking ip to auto answer?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
#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
Auto Call Pickup Enabled

24. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
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.

25. How do do configure TEHO?
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
sh ephone reg|and|debug voip dialpeer
Top Down means that channel 1 will be the first channel used to place outgoing calls.
#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

26. Where do you use VIA zone?
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
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
Configure it on the route group through the route list - then it will be local to the route list.
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name

27. Describe how you configure SIP URI functionality.
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
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

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

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29. What does an H323 GW require that MGCP GWs do not?
Dial-peers
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
Service Parameters --> Mobile Voice Access Number
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

30. What are the 3 mandatory commands within call-manager-fallback?

Max-dn|max-ephone|ip source-address
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Put them in a route list.

31. What does KPML do?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Assign SIP Dial Rules
Precede the # with a > ... so 9011*>#
'Use before the ... so XXXX

32. What does rule 1 /^.*(....$)/ /1/ do?
#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
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Matches any length dialed number and truncates it to 4 digits.
Master/Slave relationship. CUCM controls it.

33. How do you use an ephone template?
Dial-peers
Apply it to the ephone.
8kb/s
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).

34. How do you configure CUBE?

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35. Which takes precedence Device Locations or Device Pool Locations?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Dial-peers
Device Pool Locations
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

36. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Ccm-manager music-on-hold
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
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)

37. How do you place SCCP and SIP phones into a single huntgroup?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
Via the voice hunt-group parallel command
Max-dn|max-ephone|ip source-address
sh ephone reg|and|debug voip dialpeer

38. When a CUCM device dials a number - what happens?
On CUCM it's identical to adding an H323 GW.
Sh ip rsvp reservation||sh sccp connections
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

39. How do you see the details of calls coming in and out of the PRI?
To notify SIP Phones of NTP
Debug isdn q931
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
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

40. In Gatekeeper CAC how do you restrict a specific endpoint?
Device Pool Locations
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
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones

41. In CME Where is the Calling Name derived from?
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 .)
The name configuration field in ephone-dn and voice register dn
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
#voice service voip| #no supplementary-service h225-notify cid-update

42. What are the commands to configure SIP phones in CME?
Apply it to the ephone.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
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
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

43. What terminology translates to SRST?
Dtmf-relay h245-alpha
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
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
Reroute when there is a WAN Outage.

44. Name 4 useful show commands for active calls.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
On CUCM it's identical to adding an H323 GW.
Sh ccm-manager
'Service Parameters --> Auto Answer Timer

45. On an MGCP GW - how could you see the primary and backup CUCM servers?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Service Parameters --> Mobile Voice Access Number
Service Parameter --> Block OffNet To OffNet Transfer --> True
Show ccm-manager

46. What does Display-IE do?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Device Pool Locations
Sends the Calling Name.
The name configuration field in ephone-dn and voice register dn

47. How would you verify that DHCP is working in IOS?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
#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)#sh cdp neigh detail
...

48. How do you configure an MGCP GW? (router side)
Precede the # with a > ... so 9011*>#
(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
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

49. How would you set the the timer for Auto Answer?

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50. Need to Know||Anytime you have an external call - it needs to match on a 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!
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Configure it on the route group through the route list - then it will be local to the route list.
(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

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