Astreya

Voice Consultant

India · Work style not stated · Full time

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About the role

Description from the employer’s posting. Check the employer’s page for the current version.

EmployerAstreya
LocationIndia
Work styleWork style not stated
Employment typeFull time
Employer posted7 Oct 2026

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.

Show full description

• 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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