VoIP Telephony Engineer: Asterisk & Cisco SIP Expert

Isa Cybersecurity Inc.; San Francisco (CA); On-site; USD 68,880 - 96,432; Part time

Job summary

Isa Cybersecurity Inc. is seeking an experienced Asterisk SIP & Cisco Telephony Administrator (part-time contractor) in San Francisco, California. The role involves expertise in VoIP telephony systems and Cisco tools to optimize telephony infrastructure and ensure high communication quality.

Candidates should have a robust understanding of SIP protocols, call routing, and be proficient in configuring Asterisk PBX systems. This position supports seamless communication and reliability across the organization.

Qualifications

• 3+ years of experience with Asterisk, preferably in VoIP.
• Direct experience with Cisco telephony components (CUCM, CUBE).
• Strong understanding of SIP protocols and call routing.

Responsibilities

• Configure and manage Asterisk PBX systems for optimal performance.
• Integrate Asterisk with CRM/Helpdesk systems for call center operations.
• Maintain VoIP security, ensuring reliable communications.

Skills

Asterisk

Cisco Telephony

SIP Protocol

VoIP Networking

Linux Administration

Tools

Cisco Unified Communications Manager (CUCM)

Asterisk PBX

Grafana

Prometheus

Job description

Isa Cybersecurity Inc. is seeking an experienced Asterisk SIP & Cisco Telephony Administrator (part-time contractor) in San Francisco, California. The role involves expertise in VoIP telephony systems and Cisco tools to optimize telephony infrastructure and ensure high communication quality.

Candidates should have a robust understanding of SIP protocols, call routing, and be proficient in configuring Asterisk PBX systems. This position supports seamless communication and reliability across the organization.