400-051: CCIE Collaboration Written Exam is for professionals of the field of information technology that are hard core technicians. The exam is one hundred and twenty minutes in which candidate have to solve approximately ninety to hundred and ten questions. The exam is taken in English language only.

The purpose of the exam, 400-051: CCIE Collaboration Written is to provide expert knowledge and skills on Cisco CCIE for which, the given courses outline for the exam is related to all the technical concepts. To make things easier for the interested candidates reading this article, we have also provided them with the official course list in the later paragraphs for them to check and learn.

400-051: CCIE Collaboration written exam consists of the following topics with their sub divisions.
Cisco Collaboration Infrastructure consists of Cisco UC Deployment Models, User management, IP routing in Cisco Collaboration Solutions, Virtualization in Cisco Collaboration Solution, UCS, VMware, and Wireless in Cisco Collaboration Solutions, Network services, PoE, Voice and data VLAN, IP multicast, IPv6. Another topic is Telephony Standards and Protocols which includes, MGCP, SIP, H.323 and RAS, Voice and video CODECs and RTP, RTCP, and SRTP.

Another topic of the 400-051: CCIE Collaboration written exam is called Cisco Unified Communications director (CUCM) in which candidate has to understand the Device registration and being without a job, Device settings, Codec selection, Dial plan, Globalized call routing, Local route group, Time-of-day routing, Application dial rules, Digit manipulations, medium resources, Transcoder and MTP, Annunciator, MRG and MRGL, CUCM serviceability and OS administration, Database duplication, Service activation, CUCM disaster recovery, Call Admission Control, SIP and H.323 trunks, SAF and CCD, Call recording and silent monitoring, CUCME, SCCP phones registration, SIP phones Registration, SRST, CME-as-SRST, MGCP fallback, MMOH in SRST, Cisco IOS-based call queuing, Voice hunt groups, Call blast, Cisco IOS media resources, Conferencing, Transcoding, DSP management, CUBE, Mid-call signaling, SIP profiles, Early and delayed offer, DTMF interworking, Box-to-box failover in addition to redundancy, Fax and modem protocols, Analog telephony signaling, Analog telephony signalling theories (FXS/FXO), Caller ID, Line voltage detection, THL sweep, FXO disconnect, Digital telephony signaling, Digital telephony signalling theories

The next topic is Cisco IOS dial plan that have the following objectives to be learnt, they are Translation Dial-peer matching logics, Quality of Service and Security in Cisco Collaboration Solutions, QoS: link efficiency, LFI, MMLPPP, FRF.12, cRTP, QoS: classification and smudge, Voice in opposition to video classification, Soft clients versus hard clients, expectation boundaries, QoS: congestion management, Layer 2 priorities, Low latency queue, Traffic policing and shaping, QoS: medianet, QoS: wireless QoS, Security: mixed manner cluster, Security: secured phone connectivity, Security: default security, safekeeping: firewall traversal, Security: toll fraud, Cisco agreement association,

CUCM and CUCME integration, Single inbox, MWI, Call handlers, CUC dial plan, Directory handlers, CUC features, Visual voicemail, Voicemail for Jabber, Voicemail networking, Cisco Unified Contact Center Express, UCCX CTI Integration, ICD functions, UCCX scripting components, Cisco Unified IM and Presence and Cisco Unified IM Presence Components to be trained and understood well by the applicant for the exam which is 400-051: CCIE Collaboration written by Cisco.