CCNP Collaboration flashcards
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32 cards. Read the term and the definition here. The deck at the top of this page is optional.
- Device Pool
- A CUCM configuration element that assigns a region, location, date/time group, SRST reference, and network locale to devices so they share consistent settings.
- Region
- A CUCM setting that determines which codec is used between devices in different regions; it controls codec selection, not total bandwidth.
- Location
- A CUCM setting used for call admission control; it defines available audio/video bandwidth between locations and can block calls that exceed limits.
- SRST
- Survivable Remote Site Telephony lets a remote-site router provide call control fallback to IP phones when the phones lose connectivity to the CUCM cluster.
- DHCP Option 150
- A DHCP option that supplies IP phones with a list of TFTP server addresses used to download configuration files and firmware during boot.
- NTP requirement
- CUCM, IM&P, Unity Connection, and Expressway rely on synchronized time for certificates, logs, and replication; configure reliable NTP sources for all nodes.
- SCCP signaling port
- Skinny Client Control Protocol phones register to CUCM over TCP port 2000; SCCP uses TCP for signaling and separate RTP/RTCP for media.
- SIP signaling ports
- SIP endpoints use UDP or TCP port 5060 for unencrypted signaling and TCP port 5061 for TLS-encrypted signaling to CUCM or Expressway.
- Phone boot process
- An IP phone obtains power, gets an IP address via DHCP, learns TFTP servers, downloads configuration and firmware, then registers with CUCM.
- CAPF
- Cisco Certificate Authority Proxy Function issues and manages Locally Significant Certificates for endpoints, enabling encrypted phone signaling and media with CUCM.
- RFC 4733 DTMF
- Out-of-band DTMF carried in RTP Named Telephone Events; it is more reliable than in-band tones across compressed codecs and gateways.
- G.711 bandwidth
- G.711 encodes 64 kbps per call; actual network bandwidth is higher after IP, UDP, RTP, and possibly SRTP overhead.
- SRTP and TLS
- TLS encrypts SIP signaling, while SRTP encrypts RTP media; both are needed for secure call signaling and secure voice payload.
- Partition
- A CUCM dial-plan container for directory numbers and route patterns; partitions are made available to users through calling search spaces.
- Calling search space
- An ordered list of partitions that a device or line can access; CUCM searches partitions in order when matching dialed digits.
- Translation pattern
- A CUCM pattern that matches dialed digits and transforms called or calling numbers before the call is routed to a route pattern or DN.
- Route group
- A CUCM list of gateways or trunks that can terminate a route pattern; it distributes calls across its members and provides failover.
- Route list
- A CUCM ordered list of route groups; CUCM tries route groups in sequence to provide primary, secondary, and backup call paths.
- Hunt pilot
- A CUCM DN that routes incoming calls to a hunt list; the hunt list contains line groups whose members ring according to a distribution algorithm.
- Time-of-day routing
- CUCM uses time periods, time schedules, and date/time groups assigned to partitions to permit or deny dial-plan matches based on current time.
- Unity Connection
- Cisco voicemail and auto-attendant application that integrates with CUCM through SIP or SCCP, stores messages, and supports LDAP user synchronization.
- Voicemail pilot
- A CUCM DN that sends calls to Unity Connection; the voicemail profile associates lines with the pilot and determines busy/no-answer forwarding.
- IM and Presence
- Cisco IM&P provides XMPP-based instant messaging and presence, integrates with CUCM for availability, and can federate with external domains.
- Jabber UDS
- Cisco Jabber can use the User Data Service over HTTPS to discover and retrieve CUCM configuration, contact sources, and voicemail settings.
- SAML SSO
- Single sign-on uses SAML 2.0 with an identity provider; CUCM, Unity Connection, and IM&P redirect browser or client authentication to the IdP.
- UCCX
- Cisco Unified Contact Center Express provides queueing, IVR scripts, agent routing, and reporting for contact center deployments integrated with CUCM.
- Expressway-C
- The internal collaboration edge node placed in the enterprise network; it connects to CUCM, IM&P, Unity, and CUBE and pairs with Expressway-E.
- Expressway-E
- The external collaboration edge node placed in a DMZ; it terminates secure inbound connections from remote Jabber clients and external domains.
- Traversal zone
- A secure link between Expressway-C and Expressway-E using mutual TLS; it carries signaling and media for firewall traversal and MRA.
- MRA
- Mobile and Remote Access lets Jabber clients outside the network register through Expressway-E and Expressway-C to CUCM, IM&P, and Unity.
- B2B DNS SRV
- Business-to-business calls can use DNS SRV records to discover a remote SIP peer; static neighbor zones are used when DNS discovery is unavailable.
- CUBE
- Cisco Unified Border Element is a SIP-to-SIP session border controller that provides demarcation, security, transcoding, call admission control, and protocol interworking.