Two interpreters per language pair per booth, always. This is the AIIC professional standard and the operational requirement at UN-system, EU, and any procurement-grade institutional venue. The reason is not comfort — it’s accuracy preservation. Simultaneous interpretation operates working memory at near-peak utilisation continuously; sustained delivery past ~30 minutes shows measurable degradation in numerical precision, named-entity accuracy, syntactic complexity, and self-correction frequency.

A solo interpreter delivering simultaneous past ~30 minutes will not perform at the standard the engagement requires. The 20–30 minute rotation cadence is the substantive threshold below which accuracy is preserved. Othello does not offer solo simultaneous delivery for any session beyond ~30 minutes.

Two ISO standards apply: ISO 2603:2016 for permanent (fixed) booths built into conference venues, and ISO 4043:2016 for portable booths assembled on-site at hotel ballrooms or conference centres. Acoustic and operational thresholds are identical across both — the difference is in construction and assembly.

Whether your venue meets the standard depends on the venue. UN Conference Centre Bangkok (UNCC) has ISO 2603 fixed booths. Most Bangkok 5-star hotel ballrooms accommodate ISO 4043 portable booths through established AV partners. Smaller meeting rooms, draped-curtain partitions, or “informal” interpreter setups do not meet the standard and are not industry-acceptable at procurement tier. Othello verifies booth standard at site visit (Phase 03 of the methodology) before the engagement locks, not after.

Othello supplies the full equipment package through an established Bangkok conference AV partner — booth, consoles, receivers, headsets, microphones, control unit, distribution, on-site spares. Equipment is line-item costed into the engagement letter alongside interpreter fees. The standard configuration is the 40–50 participant package documented in Section 05; scales up or down on engagement basis.

Single-vendor sourcing is deliberate: separate AV vendor quotes create procurement audit-trail friction at multilateral, FAR-grade, and SET-listed governance tiers. One engagement letter, one point of accountability — interpreter performance and equipment performance under one chain.

Glossary lockstep at T-minus-5 business days is the substantive operational threshold. Briefing material intake typically opens at T-14 days — agenda, speaker bios, presentation slides, prior-year reports for AGMs, regulatory documents under disclosure, sectoral glossaries, organisation-specific terminology preferences. All exchanged under NDA ตั้งแต่อีเมลฉบับแรก.

The bilingual termbase is drafted from briefing materials by T-10 days, circulated for client review, and locked at T-5 days except for late-arriving speaker bios or supplementary materials. A glossary improvised on the day produces inconsistent terminology across the rotation — the most visible failure mode at procurement-evaluation review.

NDA from first email. Substantive content trigger — any enquiry referencing specific engagement type, scope dimension, named matter, or regulatory deadline — activates the NDA workflow. Othello’s standard NDA template attaches on first substantive reply, or Othello signs the client’s NDA template within 1 business day. Briefing materials, glossary terms, and any client content move only after NDA execution.

All interpreters are in-house under direct employment and bound by engagement-letter confidentiality with engagement-specific NDA extension where required. No freelance handoff, no consumer-AI relay tools, no undisclosed subcontracting. The discipline aligns operationally with Big Law privilege regime, UN-system multilateral confidentiality, US government FAR-grade procurement, and Thai listed company anti-corruption procurement.

กระบวนการรับรองนิติกรณ์เอกสารของ standard working day is 8 hours, aligned with AIIC professional practice and consistent with UN-system, EU, and Thai institutional precedent. Half-day minimum (4 hours) for shorter engagements. The working day includes interpreter on-site time from 90 minutes before the first session through to end of the day’s final session — equipment verification, paired coordination, and end-of-day handover are part of the working day, not additional.

Overtime applies past the 8-hour working day at engagement-letter-specified rates. Multi-day engagements rebase the working day each day; back-to-back overruns are not folded across calendar days. Pricing structures and indicative rates are confirmed under engagement letter — see การเสนอราคา และ Contact pathway 02 — Pre-RFP Scoping.

Recording is determined at scoping, before the booth configuration locks. Recording requires substantive consent verification — interpreter consent under engagement letter, client confirmation under engagement-letter confidentiality framework, and verification that the recording use case is consistent with the institutional context.

สำหรับ SET-listed AGMs, the listed company’s investor relations recording typically captures interpretation as part of the official event record under SET disclosure framework. For UN-system events, the institutional recording governance applies. For commercial confidential matters and M&A signings, recording is generally not used. Recording requests get substantive consent verification at scoping — see ติดต่อ.

The in-house bench covers the substantive content domains aligned with Othello’s institutional client roster: SET-listed capital markets disclosure (56-1 One Reports, prospectuses, MD&A, board materials), ESG and sustainability disclosure (IFRS S2, GRI, TCFD, SBTi, FTSE Russell methodology, SET ESG, Thai IOD CGR), cross-border legal documentation (arbitration TAI/THAC/ICC/SIAC, M&A, due diligence), human rights and sustainability law (UNGP, HRDD, CSDDD), multilateral programme documentation (UN-system, GIZ, EU institutions).

For sector-specific engagement matching, see the named bench credentials — climate and carbon (Panit, Thitaree, Nataree), sustainability reporting (Kittichai · the FTSE 4.0/5.0 cross-anchor), editorial and disclosure (Hemrudee, Chantuk), and human rights law (Paweenwat · NZ Manaaki Scholar). The interpreter pair on the engagement is briefed by the matched bench specialist where the content depth requires it.

กระบวนการรับรองนิติกรณ์เอกสารของ cognitive load discipline is identical — same 20–30 minute rotation, same paired-team requirement, same glossary lockstep, same AIIC discipline. The substantive differences are operational: (1) Location — booth simultaneous at the venue; RSI from a remote hub or from the interpreter’s home studio. (2) Platform standard — RSI operates under ISO 24019:2022 in addition to ISO 4043 / 2603, governing platform sound quality, video latency, redundancy, and mandatory pre-engagement technical rehearsal. (3) Equipment topology — RSI uses platform software (Interprefy · KUDO · Zoom · Webex · MS Teams · Boostlingo) instead of on-site hardware distribution.

RSI is typically appropriate for geographically distributed audiences, hybrid board meetings, multi-jurisdiction working sessions, and engagements where bringing the audience to a single venue is not practical. RSI is not a discount substitute for in-person booth simultaneous — the interpreter fees, paired-team requirement, and preparation cadence are the same. See the Remote / RSI mode page for the full operational profile.

Simultaneous interpretation is Mode 01 of five in the Othello interpretation column — Simultaneous, Consecutive, Court & Legal, Remote/RSI, Whispered. All five modes operate under one operating discipline: NDA from first email, named in-house bench, engagement-letter accountability through to founder, ISO/AIIC standards stack, 6-phase methodology, termbase carry-forward.

Interpretation sits alongside Othello’s two other practice columns — การแปลเอกสารเทคนิค (ISO 17100 lockstep, capital markets disclosure, legal documentation, sustainability reports) and ที่ปรึกษาด้าน ESG (FTSE Russell-anchored, multi-rating-agency cross-walk, framework implementation). Multi-engagement clients benefit from cross-column termbase continuity — an interpreter on a SET-listed AGM benefits from the same client termbase that anchors the company’s translated 56-1 One Report. The structural advantage is methodology continuity across all institutional engagement.

For procurement evaluation panels: see Contact’s 4 engagement pathways — Pathway 01 (RFP / Institutional Procurement) for formal RFP intake with 10-component capability brief; Pathway 02 (Pre-RFP Scoping) for 30-minute scoping calls with named bench input; Pathway 03 (Procurement Reference Request) for direct reference contact at named institutions under mutual NDA.