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Voice Consultant

Astreya • IT Infrastructure & Networking Services • IT Help Desk & Service Desk • 17 days ago

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Location

In office (Bengaluru)

Employment

Full-Time

Confirmed on the employer's own hiring board on Oct 24, 2026. First seen by Alion on Oct 7, 2026. Astreya scores B on the Alion truth index.

Overview

Company

Impact

Profile match

Astreya

Astreya is an IT services company that provides managed IT operations for large technology companies, including service desk and onboarding support, workplace and audio-visual services, data center and network operations and hardware return logistics. Founded in 2001 in Silicon Valley, it reports more than 2,200 IT professionals working in 33 countries, with large delivery teams in India, Singapore and the United States. The company is headquartered in San Jose, California, United States.

astreya.com • HQ: San Jose, United States • IT Infrastructure & Networking Services • IT Help Desk & Service Desk • 1001-5000 employees • Est. 2001

Tech stack of Astreya

Role 1 - Teams Telephony / Voice Consultant

Must-have (core):

Teams Phone (Phone System) architecture - deep on Direct Routing; knows how it differs from Operator Connect and Calling Plans, and why Direct Routing is the right fit here (customer + telco + SBC).
Hands-on SBC configuration - AudioCodes (Mediant) and/or Ribbon/Sonus (SBC Core / SWe): trunks, IP profiles, coders, routing rules, HA/failover.
SIP & SIP trunking - SIP signaling, SDP, codecs (G.711/OPUS), transcoding, media bypass; ability to read a SIP ladder.
Direct Routing plumbing - PSTN gateways, voice routes, PSTN usages, online voice-routing policies.
Dial plans & number normalization - tenant dial plans, regex normalization rules, effective dial plan validation.
Telco/carrier coordination - working the SIP trunk, DID ranges, and number porting with the telco provider.
Emergency calling - E911 / dynamic emergency calling, Location Information Service.
Voice troubleshooting - SBC logs, syslog/Wireshark traces, Teams call analytics / Call Quality Dashboard.
Voice apps - resource accounts, auto attendants, call queues, caller-ID policies.
Voice networking - TLS/SRTP certificates, firewall/NAT, QoS, media ports.

Nice-to-have: MS-720 (Teams Voice Engineer) cert; AudioCodes/Ribbon vendor certification; SBC redundancy/HA design; contact-center or analog/SIP gateway integration experience.

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