Multilingual

40 + languages.
Mid-call switch.

Convexa voice agents speak the way your callers actually speak — including the half-Spanish, half-English calls that often catch other systems out. We design, build, and manage the whole thing for you.

call_82f9 · Pelham Pharmacy repeat-Rx
code-switch · 1.1 s
AGENT

“Hi, this is Owen at Pelham Pharmacy. How can I help you today?”

en-GB
CALLER

“Witam, potrzebuję powtórnej recepty na lek na serce.”

pl-PL
AGENT

“Oczywiście. Jak się Pani nazywa i jaka jest data urodzenia?”

pl-PL
CALLER

“Tak — March 14th, 1968.”

en mid
AGENT

“Got it — March 14, 1968. Pani recepta na Atorwastatynę 40 mg będzie gotowa w aptece Pelham Bayswater.”

mixed
Why it matters

Real callers don’t
pick one language.

Across some UK pharmacy deployments, close to a fifth of inbound calls contain at least one non-English phrase. The mid-call switch is where most voice systems struggle.

Switch mid-sentence

Convexa detects the language of every utterance and routes to the right voice model — within the same call, no re-mount.

Region-aware voices

Spanish in Mexico City sounds different than in Madrid. We ship per-region voice variants and per-region pronouns.

Same knowledge, every language

Your knowledge base is indexed cross-lingually. The agent answers in Spanish from documents written in English, with citations preserved.

The library

40 + languages.
340 voices.

Each language ships with 3–12 native voices and regional accent variants. New languages added monthly.

English en
US · UK · AU · IN · CA
38 voices
Spanish es
MX · ES · AR · CO · US-LatAm
28 voices
Portuguese pt
BR · PT
14 voices
French fr
FR · CA · BE
16 voices
German de
DE · AT · CH
12 voices
Italian it
IT
10 voices
Dutch nl
NL · BE
8 voices
Polish pl
PL
6 voices
Swedish sv
SE
6 voices
Norwegian no
NO
4 voices
Danish da
DK
4 voices
Finnish fi
FI
4 voices
Russian ru
RU
8 voices
Turkish tr
TR
6 voices
Arabic ar
SA · EG · MA · UAE
14 voices
Hebrew he
IL
4 voices
Hindi hi
IN
12 voices
Tamil ta
IN · LK
6 voices
Bengali bn
IN · BD
6 voices
Mandarin zh
CN · TW
14 voices
Cantonese yue
HK · GZ
6 voices
Japanese ja
JP
12 voices
Korean ko
KR
10 voices
Vietnamese vi
VN
6 voices
Thai th
TH
6 voices
Tagalog tl
PH
6 voices
Indonesian id
ID
6 voices
Malay ms
MY · SG
4 voices
Greek el
GR
4 voices
Czech cs
CZ
4 voices
Romanian ro
RO
4 voices
Hungarian hu
HU
4 voices
Ukrainian uk
UA
4 voices
Croatian hr
HR
3 voices
Serbian sr
RS
3 voices
Bulgarian bg
BG
3 voices
Swahili sw
KE · TZ
beta · 2 voices
Zulu zu
ZA
beta · 2 voices
Yoruba yo
NG
beta · 2 voices
Filipino fil
PH
beta · 2 voices

Faded = beta. Beta languages are usable in production but lack region variants for now.

Accent fidelity

“Spanish” is at least nine
different sounds.

Region-specific voices and accent-tolerant speech recognition. Convexa hears your callers clearly across customer support and lead qualification calls, regardless of where they grew up.

Spanish (9 variants)

Built-out voices in Mexican, Castilian, Rioplatense, Caribbean, Andean, US-LatAm, and three more — with cross-variant ASR.

es-MXes-ESes-ARes-COes-CLes-PEes-USes-PRes-CU

English (7 variants)

Including the under-served ones — Indian English, Singaporean English — which most TTS gets badly wrong.

en-USen-GBen-AUen-INen-CAen-SGen-ZA

Arabic (4 variants)

Modern Standard and three major dialects. Auto-detected on the first turn.

ar-MSAar-SAar-EGar-MA

French (3 variants)

Parisian, Québécois, Belgian. Pronoun and date-format adjustments per region.

fr-FRfr-CAfr-BE

We switch it on — one line on our side.

# we set the languages your agent speaks agent.languages = ["en-US", "es-MX", "zh-CN"]; # auto-detect on the first utterance agent.languageMode = "auto-detect"; # allow code-switching mid-call (default true) agent.codeSwitching = true;

No work on your side. Same agent, same flow, same knowledge base — speaking the language the caller chose.

The kind of difference it makes

“When patients can switch into their own language mid-call, the ones who used to hang up tend to stay on the line.”

Actual results vary by deployment, market, and call mix.

Built to scale,
human by design.

Talk to our team about a multilingual deployment.