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Astreya

Voice Consultant

LocationBangalore, India
SenioritySenior
Company size1,001–5,000 people
First seenOct 8, 2026 · 3d ago
Verified live1d ago
At a glanceSummarised by Seekless from the posting.
Must have10
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 have5
MS-720 (Teams Voice Engineer) cert
AudioCodes vendor certification
Ribbon vendor certification
SBC redundancy/HA design experience
Contact-center or analog/SIP gateway integration experience
Skills
Teams Phone
Direct Routing
Operator Connect
Calling Plans
AudioCodes Mediant
Ribbon Sonus SBC Core
Ribbon Sonus SWe
SIP
SIP trunking
SDP
G.711
OPUS
PSTN gateways
Voice routes
Tenant dial plans
Regex
E911
Location Information Service
Wireshark
Teams call analytics
Call Quality Dashboard
Resource accounts
Auto attendants
Call queues
PowerShell
TLS/SRTP
NAT
QoS
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
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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