Buy DID numbers for Grandstream UCM — SIP trunk setup with DIDHub
DIDHub provides DIDs and SIP trunks for Grandstream UCM IP-PBX series (UCM6300, UCM6200, UCM6510, etc.). Drop-in SIP trunk configuration in the UCM admin UI, supports inbound DID routing, outbound CID, recording, and Grandstream's standard call-flow features.
Why DIDHub for Grandstream UCM
- Native SIP trunk fit. Grandstream UCM's SIP trunk admin UI is straightforward; DIDHub plugs in as one of the trunk types with standard registration or peer-IP authentication.
- Per-DID flat pricing for SMBs. Grandstream UCMs are popular with SMBs and MSPs. DIDHub's no-minimum, no-commit pricing matches the SMB economics.
- 136-country DID coverage. For multi-site or multi-country Grandstream deployments, one DIDHub trunk handles all countries.
- Inbound CID name lookup. Grandstream UCM can do CNAM lookup on inbound calls; DIDHub passes the right SIP From-display-name when available.
- Recording-friendly. Grandstream UCM's call-recording feature works regardless of upstream trunk; DIDHub doesn't interfere with recording mid-call SIP signaling.
SIP trunk setup — step by step
- Sign up at /signup and provision DIDs.
- Generate DIDHub SIP credentials.
- In Grandstream UCM admin: Extension/Trunk → VoIP Trunks → Add SIP Trunk. Choose Register-style or Peer-style.
- Paste DIDHub SIP URI (typically
sip.didhub.io) and credentials. - Configure inbound routes to map each DID to the appropriate extension / IVR / queue.
- Configure outbound routes to use the new trunk with the right Caller-ID per extension.
- Test inbound + outbound; verify ring-group, hunt, and recording behavior.
Pricing snapshot
Flat per-DID pricing fits the SMB / MSP profile that Grandstream UCMs typically serve. No surprise minimums.
| Country | Number type | From |
|---|---|---|
| United States | Geographic local | $1.99/mo |
| United States | Toll-free 800/833/844/855 | $1.50/mo + usage |
| United Kingdom | London 020 / 0330 national | $0.63/mo |
| Germany | Berlin 030 / nationwide | $1.10/mo |
| Israel | National 073 / city codes | $2.50/mo |
| Japan | Tokyo 03 / nationwide | $2.00/mo |
| Australia | Sydney 02 / nationwide | $1.30/mo |
Full per-country pricing on each country page. Per-minute outbound from $0.003/min for US-domestic landline; Origin Based Rating (OBR) applies to EEA outbound.
FAQ
Which Grandstream UCM models work with DIDHub?
All current models — UCM6300 series (6301, 6302, 6304, 6308), UCM6200 series, UCM6510, plus older UCM61xx still supported via standard SIP.
Can I use Grandstream's GDMS cloud manager with DIDHub?
Yes. GDMS provisions Grandstream phones; the SIP trunking layer is independent and uses DIDHub regardless of GDMS provisioning.
Does Grandstream's UCMRC (Remote Connect) work with a DIDHub trunk?
Yes — UCMRC handles remote-extension NAT traversal, which is unrelated to the upstream SIP carrier.
How do I migrate from another carrier to DIDHub on Grandstream UCM?
Add DIDHub as a second SIP trunk alongside your existing one. Move inbound routes per DID as they port in. Standard parallel-cutover.
Buy your first Grandstream UCM DID
Sign up at /signup, pick a country, route the DID to your Grandstream UCM SIP trunk. Sub-60-second activation on most countries. No commits.
Ready to get a number?
Pick a DID in 130+ countries from $1.99/month. Activates instantly on most numbers.