Understand the certification
Cisco 300-810 CLICA (Implementing Cisco Collaboration Applications) 是 CCNP Collaboration 的 Concentration 选修之一。要拿完整 CCNP Collaboration，必须 350-801 CLCOR (Core) + 任选一门 Concentration，CLICA 聚焦 Cisco Unified Communications Manager (CUCM)、Unity Connection 语音信箱、IM and Presence (IM&P) 三大应用平台的部署、集成与排障。
考试规格：65 题 / 120 分钟，及格 825/1000，考试费 $330 USD，有效期 3 年。
四大考纲领域：
- Unified CM Call Integration — 25%：SIP trunk、H.323 trunk、CUCM 集群间通信、CUBE（Cisco Unified Border Element）SIP 边界控制
- Unity Connection & Voicemail — 25%：Unity Connection 部署、Single Inbox、IMAP 集成、SpeechView 转录、呼叫处理器集成
- IM and Presence — 20%：IM&P 节点部署、XMPP 联邦、Jabber 客户端集成、高可用集群
- Cisco Collaboration Endpoints — 30%：CUCM 上的电话注册（SIP/SCCP）、软终端 Jabber 配置、视频终端（Webex Room 系列）、Phone Services、自签名证书与混合模式安全
300-810 在 Collaboration Concentration 里算"传统 UC 运维风味最重"的一门。如果你日常在 CUCM Admin 页面上加分机号、调 Route Pattern、排 Jabber 注册故障，这门考的就是你每天干的事。
Exam at a glance
- Exam code
- 300-810
- Provider
- Cisco
- Format
- Single choice / Multiple select
- Language
- English
- Validity
- 3 years
- Exam fee
- $330
Skills in focus
Learning outcomes
- Prepare for the Cisco 300-810 CLCEI exam with a structured study path
- Deploy and troubleshoot Expressway and Webex hybrid services more confidently
- Handle certificates, TLS, and traversal requirements correctly
- Improve your fit for collaboration cloud and edge implementation roles
Who this is for
- Collaboration engineers deploying cloud and edge services
- Voice and UC engineers working with Expressway, CUCM, and Webex
- IT professionals responsible for collaboration security and connectivity
- Candidates preparing for the Cisco 300-810 CLCEI exam
Before you start
- Basic Cisco collaboration knowledge is recommended
- Familiarity with CUCM, SIP, and DNS will help
- Hands-on access to Expressway or a lab environment is strongly recommended
- Understanding certificates and firewall traversal is useful
Consider another path if
- 目标纯云 UC（Teams Phone / Zoom Phone / Webex Cloud Calling）的人
- 没有 CUCM 实际操作经验、纯网络背景的工程师
- 想考 CCNP Collaboration 但日常不碰 UC 应用的网络工程师 — 考虑 300-815 CLACCM 或 300-820 CLCEI
Your learning path
6 chapters
Plan your preparation
- Learning hours
- 40h
- With relevant experience
- 8-12 weeks
- Starting from scratch
- 16-22 weeks
- Daily study
- 1.5-2h
Included in your preparation
- 206 practice questions focused on collaboration cloud and edge tasks
- Coverage of Expressway, MRA, Webex hybrid services, and certificate handling
- Practical review of edge deployment and troubleshooting scenarios
- Mock exam aligned to the official 120-minute format
- Detailed explanations that focus on how the collaboration pieces fit together
1. 第一阶段：CUCM 基础 + Call Routing 打穿（3-4 周）
搭 CUCM Lab（GNS3 或 CML 跑 CUCM 虚拟机，最低 16GB RAM）。核心任务：理解 CUCM 集群架构（Publisher + Subscriber）、SIP trunk vs H.323 trunk 配置差异、Route Pattern / Route List / Route Group 三层路由链路、Calling Search Space (CSS) + Partition 的权限控制逻辑。做到能独立配一个多站点 CUCM 环境，两个站点通过 SIP trunk 互通。
2. 第二阶段：Unity Connection + IM&P 部署（3-4 周）
Unity Connection：CUCM 与 Unity 的 SIP 集成（Voice Mail Pilot + Voice Mail Profile）、Single Inbox 配置（IMAP + 邮件服务器）、Call Handler 呼叫流程设计。IM&P：XMPP 基础、IM&P 与 CUCM 的数据库同步（UC Service Profile）、Jabber 客户端 SRV 记录发现流程、IM&P 高可用（Sub-cluster）。这两块各占 20-25%，不能跳过。
3. 第三阶段：Endpoints + CUBE + 安全 + 排障冲刺（3-4 周）
Endpoints 30% 权重最高：SIP/SCCP 电话注册流程、Jabber MRA（Mobile Remote Access）通过 Expressway-C/E 的穿越流程、视频终端（Webex Room Kit）注册到 CUCM。CUBE：SBC 基础概念、dial-peer 匹配逻辑、SIP Profile 修改 SIP 头。安全：CUCM Mixed Mode（CTL Client）、证书管理。最后 1 周刷 Boson ExSim 或 Cisco Learning Network 社区题目，目标 80%+。
Career value
CLICA + CLCOR = 完整 CCNP Collaboration。单独 CLICA 无独立证书，雇主看的是 CCNP Collaboration 整体。Cisco UC 市场虽被 Microsoft Teams / Zoom Phone 侵蚀，但大型企业（金融、政府、电信）的 CUCM 部署周期长达 10-15 年，存量运维需求稳定。
谁在招：澳洲 Telstra Purple、NEC Australia、Data#3 的 UC practice 团队；美国 CDW、Presidio、World Wide Technology 等 Cisco Gold Partner 的 Collaboration BU。这些公司的 JD 常写 "CCNP Collaboration preferred, CUCM/Unity Connection experience required"。
薪资参考：Glassdoor 2025 数据显示美国 UC Engineer 中位 $100-115K，带 CCNP Collab + CUCM 经验可达 $125-140K；澳洲市场 UC/Collab Engineer 约 $120-145K AUD。
不适合考的人：目标是 Webex Cloud Calling / Teams Phone 纯云方向的人。CLICA 考的是 on-prem CUCM/Unity，云端 UC 用不上这些知识。纯云方向看 Cisco Webex 认证或 Microsoft Teams Administrator (MS-700)。
- 澳洲
- AUD 110,000 – 150,000
- 美国
- USD 90,000 – 140,000
- 中国
- CNY 200,000 – 400,000
Preparation tips
- **CUCM Lab 必须搭** — Packet Tracer 不支持 CUCM，必须用 CML 或 GNS3 + CUCM OVA。最低 16GB RAM + SSD。没有实验环境纯背概念，排障题必挂。
- **120 分钟 65 题看似宽裕** — 但有 Sim 题让你在 CUCM GUI 上操作，一道 Sim 可能吃 10-15 分钟。前面选择题压到 90 秒/题。
- **母语非英语申请 ESL +30 分钟**：Pearson VUE 报名时 Accommodations 提交。150 分钟对 Sim 题多的 CLICA 帮助很大。
Common mistakes
- **CSS + Partition 权限模型搞混** — CUCM 的呼叫权限不是靠 ACL，是靠 Calling Search Space (CSS) 包含哪些 Partition。电话 A 的 CSS 里没有 Partition X，就打不到 Partition X 里的号码。很多人把 CSS 当"源过滤"、Partition 当"目的过滤"，方向理解反了。
- **SIP trunk 和 H.323 trunk 的 codec 协商差异** — SIP 用 SDP offer/answer，CUCM 上通过 SIP Profile 控制；H.323 用 H.245 信令。考题经常给一个"通话无语音"场景，答案是 codec 不匹配或 DTMF 方式（RFC 2833 vs in-band）配错。
- **Jabber MRA 的 Expressway-C/E 穿越流程** — MRA 不是 VPN，是 Expressway-E (DMZ) + Expressway-C (内网) 的 HTTPS 穿越。Jabber 先连 Expressway-E → 反向代理到 Expressway-C → 到 CUCM。证书链、DNS SRV 记录、Edge 防火墙端口（8443/TCP）任一环出错都注册失败。
- **Unity Connection 的 Call Handler 路由逻辑** — Call Handler 不是 Auto Attendant。Opening Greeting → 按键映射 → 转接规则，三层处理有严格优先级。考题给一个"来电转语音信箱失败"的场景，通常是 Call Routing Rule 优先级配错。
Before you register
What is the Cisco 300-810 CLCEI exam and who is it for?
The 300-810 CLCEI (Implementing Cisco Collaboration Cloud and Edge Solutions) is a CCNP Collaboration concentration exam that validates your ability to implement cloud and edge solutions in Cisco collaboration environments. It is designed for collaboration engineers, voice/UC engineers, and IT professionals who deploy Cisco Expressway, Mobile and Remote Access (MRA), Webex hybrid services, and certificate-based security for collaboration endpoints.
What topics does the 300-810 CLCEI exam cover?
The exam covers key collaboration edge domains including: (1) Cisco Expressway-C and Expressway-E configuration and deployment; (2) Mobile and Remote Access (MRA) for Jabber and endpoints; (3) Cisco Webex hybrid services (Calendar, Call, Message); (4) Certificate management and TLS/mTLS for collaboration security; (5) B2B (Business-to-Business) calling with SIP trunks and DNS configuration; (6) Troubleshooting collaboration edge and cloud integration issues. Hands-on experience with Cisco Expressway and CUCM is highly recommended.
How difficult is the 300-810 exam and how should I prepare?
The 300-810 exam is 120 minutes long with approximately 65 questions, requiring a score of 825/1000 to pass. The exam fee is $330 USD. It is considered moderately difficult, requiring practical knowledge of Cisco Expressway deployment and Webex hybrid integration. Recommended preparation includes 3-6 months of study, lab practice with Expressway-C/E and CUCM, and understanding of certificate management and DNS/SIP concepts. The certification is valid for 3 years.
Learner experiences
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日常做 CUCM 运维 3 年，考 CLICA 主要是公司要 CCNP Collab 数量续 Gold Partner。最意外的是 Unity Connection 的 Single Inbox 和 IMAP 集成 考得很细 — 我平时只管语音信箱基础配置，IMAP 那块从来没碰过。真考 4 道 Unity 题有 2 道问 IMAP 配置和 SpeechView 转录。建议 UC 运维同行别跳过 Unity 的高级功能。
T. Yoon
UC Engineer (Cisco Gold Partner, 澳洲) · 861/1000 · 10 weeks
带团队做 CUCM 项目 5 年但自己不常敲命令。备考最难的是 CUBE 的 dial-peer 匹配逻辑 — inbound/outbound dial-peer 的选择顺序（destination-pattern → incoming called-number → incoming uri）记混了就全错。最后靠在 CML 上反复抓 SIP debug 才搞清楚。CUBE 那 2-3 道排障题占分不低。
某运营商 UC 项目经理
协作平台管理（北京） · 838/1000 · 14 weeks
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