Asia
SIP Trunk Bangladesh — +880 Termination & DID Numbers
International calls into Bangladesh must pass through BTRC-licensed international gateway operators, which is why route quality and pricing can change quickly. Almost all traffic terminates on 11-digit mobile numbers starting 01.
Overview
Routing calls to Bangladesh
Calling windows matter: Bangladesh runs on Dhaka time, and we route +880 calls for Dhaka, Chittagong and Khulna, Sylhet and Rajshahi across several carriers so a peak-hour congestion event on one network does not take your campaign down.
Numbering in Bangladesh is managed by BTRC. We terminate to geographic and mobile ranges and price each one separately on the rate sheet. Inside the country, numbers are dialled with a 0 trunk prefix. Strip it before you send the call, and send 880 followed by the national number.
Local numbers in Bangladesh are tightly controlled, so availability changes over time. Termination is available now. For DIDs, email sales with your use case and we will tell you what can be supplied compliantly.
What you get
What you get in Bangladesh
One account and one balance, with the same SBCs for termination and inbound numbers.
CLI route tier
Caller ID delivered end to end on +880 calls. Use it for sales, support and any traffic where answer rates matter.Non-CLI route tier
A lower-cost tier where caller ID delivery is not guaranteed. Suitable for internal or transactional traffic that does not depend on the CLI.Number types
Geographic, Mobile. DID availability varies by range and city.Codecs
G.711a/u and G.729 on every route, G.722 and Opus where the far end supports them. T.38 for fax.Channels on demand
Concurrent call limits are set per account and raised as your traffic grows. No fixed channel bundles.Multi-carrier failover
Every +880 prefix is mapped to more than one carrier. Failed attempts move to the next one automatically.
Number formats
How to dial Bangladesh from your PBX
Send E.164 digits. The sample number below shows the format only.
| Format | Example | Notes |
|---|---|---|
| International (E.164) | +880 1712 345678 | How the number is written and stored. |
| Sent from your PBX | 8801712345678 | E.164 digits with no plus, prefixed by your tech prefix if your account uses one. |
| With 00 exit code | 00 880 1712 345678 | Accepted on the trunk. We normalise it to E.164. |
| National format | 01712 345678 | Dialled inside Bangladesh. Strip the trunk prefix before sending. |
Compliance
Bangladesh rules to know
What applies before your first call or your first DID goes live.
Compliance box
- Regulator
- BTRC
- Caller ID
- A valid CLI that you are entitled to use is required on CLI routes. Spoofed or unallocated numbers are blocked.
- DID KYC
- Check with sales
- Note
- International termination must pass through BTRC-licensed gateway operators.
Rules change — our team confirms current requirements before activation.
Use cases
Who uses Bangladesh routes
- 01
Diaspora calling from the Gulf, UK and US into Dhaka and Sylhet
- 02
Garment and export businesses calling suppliers in Chittagong
- 03
Remittance and fintech services verifying customers by phone
Setup
Start calling Bangladesh in 3 steps
- 01
Top up $200
Open a prepaid account and add balance by USDT (TRC20), BTC or card. - 02
Add your trunk
Whitelist your PBX IP or create digest credentials, then point your outbound route at our SBC. - 03
Dial +880
Send 880 + national number in E.164 and check the CDR for your first test call.
Further reading: ASR and ACD Explained: How to Judge a VoIP Route
FAQ
Bangladesh SIP trunk questions
How are Bangladeshi mobiles dialled?
Drop the leading 0 and send 880 + 10 digits, e.g. 8801712345678.
Who regulates Bangladeshi telecoms?
The BTRC (Bangladesh Telecommunication Regulatory Commission).
Why do Bangladesh rates change often?
Termination runs through licensed international gateways, and their pricing and capacity change over time. Check the current rate sheet.
Can I get Bangladeshi DIDs?
Availability is very limited. Ask sales.
