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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 commands to configure SIP phones in CME?
To enable two-stage dialing.
Show ccm-manager
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
#test voice translation rule 1 <input to test>
2. A <i>show isdn status</i> shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
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
Re-enter the <i>mgcp bind control</i> and <i>mgcp bind media</i> commands.
3. What does <i>rule 1 /^.*(....$)/ /1/</i> do?
Matches any length dialed number and truncates it to 4 digits.
System Cisco Unified CM|Uncheck the box <i>Auto-Reg Disabled</i>||Enterprise Parameters --> <i>Auto Registration Phone Protocol</i> SIP or SCCP
Outbound dial-peers
Bandwidth
4. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
CUCM Service Parameters --> Automated Alternate Routing Enable --> <i>True</i>
IP Voice Media Streaming App
Debug ephone moh
5. 'If you're not getting a DHCP address from CUCM what then?
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|<i>utils csa disable</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
...
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
6. What's the difference between AAR and SRST?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
<i>voice register pool</i>|and|<i>voice register dn</i>
Ccm-manager music-on-hold
7. An MGCP gateway serving as an SRST router requires what?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Call-manager-fallback</i> or <i>telephony-service mode SRST</i>
...
<i>Auto Call Pickup Enabled</i>
8. How do you create a trunk on the switch side?
<b>CAT IOS</b>|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Sends the Calling Name.
Automatically configures the MGCP GW for you.
<i>sh ephone reg</i>|and|<i>debug voip dialpeer</i>
9. How do you set the inter-digit timeout for SIP phones in CME?
(config)#voice register dialplan
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
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.
10. How do you configure phone ports on an ESW?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
<i>SIP Route Pattern</i> over a SIP Trunk.
'Service Parameters --> <i>Auto Answer Timer</i>
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
11. What are the commands to set up the PRI?
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12. What types of digit manipulation can you perform at the route 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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Put them in a route list.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
13. Aside from the <i>Media Resources --> Mobile Voice Access</i> where else do you need to specify the the Mobile Voice Access DN?
It's best to strip digits at the voice port.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Bottom up - to prevent glare.
Service Parameters --> <i>Mobile Voice Access Number</i>
14. How do you prevent toll fraud on CUCM?
(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
At the CLI: <i>utils ntp status</i>
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
15. How is NTP sych setup in CUCM?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
CUCM OS Administration Settings --> NTP Servers
(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
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.
16. How do you ensure an H323 GW always uses the Sub as primary and Pub as a backup?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
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.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec <i>Disable</i>
17. When can you not use a Standard Local Route Group?
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
Bottom up - to prevent glare.
Service Parameters --> <i>Mobile Voice Access Number</i>
18. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
Precede the # with a > ... so 9011*>#
Mobile Voice Access
When configuring TEHO.
SIP Dial Rules
19. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Ccm-manager music-on-hold
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.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
20. SNR is also known as?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Mobile Connect
Bottom up - to prevent glare.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
21. What are the base telephony-service commands for CME?
<i>h225 timeout tcp establish 3</i> within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
At the CLI: <i>utils ntp status</i>
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
22. How do you prevent H323 caller-id updates to CUCM
Sends the Calling Name.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
#voice service voip| #no supplementary-service h225-notify cid-update
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)
23. 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.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Via the <i>voice hunt-group parallel</i> command
In CUCM - configure CFUR to point to it's E164 number.
24. What is CSIM?
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Call Simulator. You can use to validate path from router to the PSTN.
It's best to strip digits at the voice port.
Find the GUI Files - show flash | i .html|<i>ip http server</i>|<i>ip http path flash:/<PATH TO FILES></i>||telephony service|web admin system name admin pass cisco|dn-webedit
25. What should you configure before entering auto qos?
Enterprise Parameters --> <i>Organization Top Level Domain</i>|Enterprise Parameters --> <i>Cluster Fully Qualified Domain Name</i>
#voice service voip| #no supplementary-service h225-notify cid-update
Bandwidth
Assign SIP Dial Rules
26. What are the commands to create the L3 routing interface for VLANS (SVI)?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Call forwarding between voip to voip (when CUBE is in play)
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
27. 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
#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
<i>voice translation-profile</i>|and|<i>voice translation-rule</i>
28. When are digits stripped in a gateway?
When they are explicitly matched in a destination-pattern in a dial-peer.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Service Parameter --> Block OffNet To OffNet Transfer --> <i>True</i>
#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
29. What are the commands to configure NTP in IOS?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
When configuring 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
CUCM OS Administration Settings --> NTP Servers
30. What is Mobile Voice Access?
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 multiple sites use the same route pattern - do your digit manipulation on a route list.
On CUCM it's identical to adding an H323 GW.
31. Maximum Wait Time for Desk Pickup?
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.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
<i>voice translation-profile</i>|and|<i>voice translation-rule</i>
Show ccm-manager
32. How do you prevent toll fraud on CME?
<b>Access Port Method</b>||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
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 ....
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
33. Is the + character supported on a VOIP dial-peer?
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34. Privacy is enabled system-wide in CUCM by default. (T or F)
Automatically configures the MGCP GW for you.
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
TRUE
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
35. Need to Know||Anytime you have an external call - it needs to match on a route pattern.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Need to Know||Anytime you have an external call - it needs to match on a route 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
36. How do you set the Call Park Reversion Timer?
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Assign SIP Dial Rules
To notify SIP Phones of NTP
CUCM Service Parameters --> <i>Call Park Reversion Timer</i>
37. What does <i>ccm-manager config server [IP]</ip> do?
Call-manager-fallback</i> or <i>telephony-service mode SRST</i>
At the CLI: <i>utils ntp status</i>
Automatically configures the MGCP GW for you.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
38. In CME Where is the Calling Name derived from?
(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
<i>voice translation-profile</i>|and|<i>voice translation-rule</i>
The <i>name</i> configuration field in ephone-dn and voice register dn
39. What terminology translates to AAR?
Debug ephone moh
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Reroute when here is WAN congestion.
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
40. How do you block calls under call-manager-fallback?
<i>#after-hours block pattern</i>
Put them in a route list.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
The Called/Calling Transformations are superceded.
41. How do you configure a gateway to register with gatekeeper?
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
Dtmf-relay h245-alpha
Higher
#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. How do you use the # as a string terminator within a SIP Dial Rule?
(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
CUCM Service Parameters --> <i>Call Park Reversion Timer</i>
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Precede the # with a > ... so 9011*>#
43. What does KPML do?
Precede the # with a > ... so 9011*>#
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
44. In CUCME what SIP config command is equivalent to ephone and ephone-dn?
<i>voice register pool</i>|and|<i>voice register dn</i>
#voice service voip| #no supplementary-service h225-notify cid-update
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
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
45. How do you get around relying on DNS for your CUCMs?
Sh ip rsvp reservation||sh sccp connections
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Mobile Voice Access
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
46. Which takes precedence Device Locations or Device Pool Locations?
<b>Access Port Method</b>||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Assign a logout-profile to the ephone.
Device Pool Locations
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
47. What are the commands to create vlans on an ESW?
Max-dn|max-ephone|ip source-address
Mobile Connect
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
48. When a CUCM device dials a number - what happens?
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
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
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
49. Where do you use VIA zone?
Show ccm-manager
Find the GUI Files - show flash | i .html|<i>ip http server</i>|<i>ip http path flash:/<PATH TO FILES></i>||telephony service|web admin system name admin pass cisco|dn-webedit
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
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. What CM Service needs to be start in Serviceability for MOH to work?
IP Voice Media Streaming App
<i>voice translation-profile</i>|and|<i>voice translation-rule</i>
Show ccm-manager
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM