Voice Support Specialist

We are looking for a Voice Systems Support Specialist to work with our global business clients. The role includes handling technical inquiries, diagnosing and resolving issues for customers using Asterisk-based telephony systems and contact centers.

This position is ideal for someone who enjoys working with VoIP, helping customers, and solving real-time communication issues.
 

Responsibilities
* Provide Tier-1 & Tier-2 support for VoIP and telephony systems, including diagnosing call failures, SIP registration errors, voice quality degradation, and call routing anomalies
* Diagnosing issues within Asterisk systems (SIP status, trunks, logs)
* Deep work with Asterisk: Dialplans, call flows, SIP, RTP
* Deep work with Asterisk: Dialplans, call flows, SIP, RTP
* Deep work with Asterisk: Dialplans, call flows, SIP, RTP
* Optimize call routing, performance, and system stability
* Work according to SLA requirements and maintain accurate ticket documentation
 

Requirements
* At least 3 years of experience in the VoIP field
* Proven experience with Asterisk in a production environment
* Deep understanding of SIP, RTP, NAT, codecs, and call flows
* Knowledge of networking (Firewalls, NAT, DNS, VLAN, QoS)
* Ability to work with sngrep, tcpdump, Wireshark
* Strong analytical skills and excellent communication
* Good English communication skills
 

Advantage: Familiarity with billing systems