Voice Engineer (Cisco CUCM)

Swing Consulting Ltd.; Hong Kong; On-site; HKD 446,000 - 558,000; Full time

Benefits offered by this job

5-day work week

10–20 days annual leave

Job summary

Swing Consulting Limited in Hong Kong is seeking a Voice Engineer to lead CUCM migrations to Microsoft Teams Operator Connect. You will design, implement, and cutover projects while advising on call centre provisioning and regulatory compliance.

The role requires 5+ years in voice engineering, CUCM experience (10x–14x), and strong collaboration across teams, carriers, and internal stakeholders. Fluency in Cantonese, English, and Mandarin is beneficial.

Qualifications

• Degree in IT/CS/Telecommunications or related field.
• 5+ years in voice/UC engineering or telecom provisioning.
• Hands-on CUCM 10x–14x experience.
• Experience with Teams Operator Connect deployment.
• Familiar with SIP trunking and SBCs.
• Knowledge of porting workflows, DNS, and domain registration.
• Strong Cantonese, English, and Mandarin communication.

Responsibilities

• Lead CUCM migration to Microsoft Teams Operator Connect.
• Provide consultancy for call centre operations and provisioning.
• Configure and manage SIP trunks, Voice TBM, IDA.
• Troubleshoot voice issues across CUCM, SBC, carrier, and Teams.
• Advise on number porting, domain registration, and DNS.
• Develop dial plans and call routing for multi-site environments.
• Coordinate with carriers for circuit delivery and porting.
• Deliver project status updates and risk logs.
• Document MOPs, runbooks, and post-migration procedures.
• Ensure regulatory compliance (emergency calling, call recording).
• Resolve ad-hoc tasks as required.

Skills

UC engineering

Voice provisioning

Call centre operations

CUCM (Cisco)

Teams Operator Connect

SIP trunking

DNS/domain registration

Multilingual communication

Education

Degree in IT/CS/Telecommunications

Tools

CUCM (10x–14x)

SIP trunks

AudioCodes

Ribbon SBC

Cisco Call Manager

UCCX/CCP

Teams Operator Connect

DNS platforms

Job description

SW9064 |06 Nov 2026 Voice Engineer (Cisco CUCM)

• Lead CUCM migration projects to Microsoft Teams Operator Connect, including planning, implementation, and cutover execution.
• Provide consultancy support for call centre operations, including workflow design and service provisioning.
• Configure and manage SIP trunks, Voice TBM, IDA, and related telephony services.
• Troubleshoot complex voice issues across CUCM, SBC, carrier, and Teams layers (Tier 2/3 support).
• Advise on number porting strategies, domain name registration, and DNS implementation.
• Develop and maintain dial plans, numbering strategies, and call routing logic for multi-site environments.
• Coordinate with telecom carriers for circuit delivery, SIP trunk provisioning, and number porting execution.
• Deliver regular project status updates, progress reports, and risk log.
• Document MOPs, runbooks, and post-migration operational procedures for support teams.
• Ensure compliance with regulatory requirements (e.g., emergency calling, call recording).
• Resolve any ad-hoc task if required.

• Degree holder in Information Technology, Computer Science, Telecommunications or a related field.
• At least 5 years experience in voice/UC engineering, telecom provisioning, or call centre operations.
• Hands-on experience with Cisco Unified Communications Manager (CUCM) versions 10x–14x. is highly preferred.
• Experience with Microsoft Teams Operator Connect deployment, including operator onboarding, number porting, and policy configuration.
• Familiar with SIP trunking, Session Border Controllers (AudioCodes, Ribbon, Cisco Call manager).
• Familiar with Voice TBM, IDA, or similar telecom billing/mediation platforms; call centre platforms (UCCX, Cisco Contact Center, or similar) and call recording solutions.
• Knowledge of number porting workflows, domain registration, and DNS implementation for (SRV, NAPTR, SIP domains).
• Good communication skills in Cantonese, English, and Mandarin.
• Benefits:
• 5-day Work Week
• 40-50K Depends on Experience
• 10-20 Days Annual Leave