Buy DID numbers for Cisco CUCM / CUBE, SIP trunk setup with DIDHub
DIDHub provides DIDs and SIP trunking for Cisco Unified Communications Manager (CUCM) deployments via Cisco Unified Border Element (CUBE). Standard CUBE-to-DIDHub SIP trunking with G.711 / G.729 codec support, SRTP for media encryption, and STIR/SHAKEN signing on US/CA outbound.
Why DIDHub for Cisco CUCM / CUBE
- Drop-in CUBE compatibility. DIDHub speaks the SIP profile CUBE expects. Configure DIDHub as an outbound dial-peer with TCP or TLS and you're routing in minutes.
- Per-DID flat pricing for enterprise. Cisco-deployed enterprises typically run on per-seat carrier pricing. DIDHub's per-DID flat economics often beat the bundled-seat math at scale.
- 136-country DID inventory. For multi-country CUCM deployments, DIDHub provisions in 136 countries with dedicated landing pages, broader than most enterprise carriers.
- STIR/SHAKEN A-attestation. DIDHub-allocated US/CA outbound signed A. Compatible with CUCM's outbound Identity-Header pass-through.
- SRTP + TLS support. CUBE-to-DIDHub link can be TLS-encrypted with SRTP media. Enterprise-grade transport security.
SIP trunk setup, step by step
- Sign up at /signup and provision DIDs.
- Generate DIDHub SIP credentials with TLS / SRTP enabled.
- On CUBE: configure a SIP outbound trunk pointing at DIDHub's regional edge. Use TLS port 5061 + SRTP for encrypted transport.
- Set the trunk's Identity-Header pass-through if you're terminating STIR/SHAKEN signed calls.
- Configure CUCM dial-peers / route patterns to direct calls to the new CUBE trunk.
- Test inbound + outbound through CUCM extensions; validate transcoding (G.711 vs G.729) if needed.
Pricing snapshot
Per-DID flat pricing scales cleanly across CUCM enterprise deployments. Per-minute outbound at carrier-grade wholesale rates with Origin Based Rating pass-through for EEA destinations.
| 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
Does DIDHub work with CUCM directly without CUBE?
CUCM doesn't natively peer with external SIP trunks, you need CUBE (or another SBC) in front. CUBE-to-DIDHub is the standard pattern.
What CUBE codec profiles work with DIDHub?
G.711 µ/A, G.729, OPUS, G.722 are all supported. Configure transcoding on CUBE if your CUCM extensions and DIDHub-side codecs differ.
Can DIDHub replace our existing Cisco-bundled SIP carrier?
Yes, standard SIP trunk migration. Run both in parallel through the FOC window, then cut over.
Is CUBE licensing required?
Yes, CUBE Enterprise (or Hosted) licenses scale per concurrent session. DIDHub doesn't change Cisco's licensing model.
Buy your first Cisco CUCM / CUBE DID
Sign up at /signup, pick a country, route the DID to your Cisco CUCM / CUBE SIP trunk. Sub-60-second activation on most countries. No commits.
Related integrations
DIDHub for 3CX
Connect 3CX to DIDHub as a SIP trunk provider. Full step-by-step config: trunk template, inbound rules, outbound caller ID, registration. Nu
Phone Numbers for AI Voice Agents
DIDHub integrates with every major AI voice platform: Vapi, Retell AI, ElevenLabs Conversational AI, Bland AI, Synthflow, LiveKit Agents, Pi
AssemblyAI Voice Agent + DIDHub Phone Numbers
Connect DIDHub SIP trunk to AssemblyAI Universal-Streaming + LeMUR for voice agents. STIR/SHAKEN A-attestation, regional ingress, 136-countr
Bland AI Phone Number Integration
Bland AI phone number integration via DIDHub SIP trunk. STIR/SHAKEN A-attestation for outbound campaigns, DID pool rotation, multi-country r
Ready to get a number?
Pick a DID in 130+ countries from $1.99/month. Activates instantly on most numbers.