1. Purpose of this policy
Abbax offers generous, business-grade allowances on every plan — but our network is a shared resource. A small number of accounts using extreme volumes can degrade quality for everyone else. This Fair Usage Policy ("FUP") explains the limits that apply to "unlimited" plan features so that the Services remain reliable, secure, and affordable for all customers.
These limits reflect typical business use. If you're a normal team using Abbax the way it was designed, you will never hit these limits. The limits exist to prevent abuse and to protect the network from misuse.
This FUP forms part of our Terms of Service.
2. Hosted VoIP limits
2.1 Domestic calling (US & Canada)
| Plan | Inbound minutes | Outbound minutes | Max call duration |
|---|---|---|---|
| Essential | Unlimited | 2,000 / seat / month | 4 hours |
| Professional | Unlimited | 3,000 / seat / month | 6 hours |
| Enterprise | Unlimited | Unlimited* | 8 hours |
*Subject to overall reasonable use. Outbound minutes are pooled across the workspace — one heavy user does not block lighter users.
2.2 International calling
International outbound is billed at-cost per minute regardless of plan. Published rates are at abbax.com/rates. Calls to premium-rate, satellite, or special-service numbers may be blocked or charged at higher rates.
2.3 Concurrent calls
Each seat supports up to 3 concurrent calls (one active, two on hold/transfer). Call center workflows requiring more should contact sales for a Contact Center add-on.
2.4 Voicemail
- Voicemail box: 500 messages per user.
- Maximum message length: 5 minutes.
- Retention: 90 days, then auto-deleted unless archived.
3. Cloud Fax limits
| Plan | Included pages / month | Overage | Max document size |
|---|---|---|---|
| Standard | 500 pages / line | $0.07 / page | 50 MB · 200 pages |
| Business | 2,000 pages / line | $0.05 / page | 100 MB · 500 pages |
| Enterprise | 10,000 pages / line | $0.03 / page | 250 MB · 1,000 pages |
- Page count is calculated per ITU-T T.30 standard (single-page equivalent).
- Pages are pooled across all fax lines on the same account.
- Single transmissions exceeding the document limits will be rejected — split large documents into smaller batches.
- Inbound faxes are unlimited and unmetered.
4. SMS & messaging
- SMS/MMS is available in the US, Canada, and UK only.
- Standard messaging: 1,000 segments per seat per month included on Professional, 3,000 on Enterprise.
- Per-segment overage rates apply — see published rates.
- A2P (application-to-person) messaging requires registered campaigns (TCR for US) and may be subject to carrier fees.
- 10DLC throughput is capped at carrier-published limits.
- Marketing/promotional messaging requires documented recipient consent and compliance with TCPA, CAN-SPAM, and applicable regulations.
5. Abbax AI usage
Abbax AI usage is measured in "AI actions" — a single PRD draft, summary, transcription, classification, or generation request. Typical workspaces use 30–80 actions per seat per month.
| Plan | AI actions / month | Overage |
|---|---|---|
| Starter | Not included | — |
| Team | 250 / workspace | $0.08 / action |
| Enterprise | Unlimited* | — |
*"Unlimited" Enterprise AI is subject to a soft cap of 50,000 actions per workspace per day. Workloads above this should be discussed with your CSM.
5.1 AI input limits
- Single request: up to 200,000 tokens of context.
- Audio transcription: up to 4 hours per file.
- Batch processing: 1,000 items per job.
6. API rate limits
| Plan | Read requests / min | Write requests / min | Webhooks |
|---|---|---|---|
| Starter | 60 | 30 | 1,000 / day |
| Team | 600 | 300 | 50,000 / day |
| Enterprise | 6,000 | 3,000 | Custom |
Requests exceeding rate limits return HTTP 429 with a Retry-After header. We recommend exponential backoff. Sustained traffic above limits may result in temporary IP-level throttling.
7. Storage & retention
- Threads & documents — no per-account limit; individual file uploads up to 1 GB.
- Call recordings — 90 days default retention, configurable up to 7 years on Enterprise.
- Fax audit logs — 7 years (HIPAA/SOC 2 compliance).
- Total workspace storage — 100 GB Starter, 1 TB Team, custom Enterprise.
- Workspaces approaching limits receive 30 days' notice. Archive or purge to free space.
8. Prohibited usage
The following are never permitted — regardless of plan — and may result in immediate suspension without refund:
- Auto-dialing / robocalling — predictive dialers, ringless voicemail drops, or automated outbound calling without TCPA-compliant consent.
- Caller ID spoofing — transmitting misleading or fraudulent caller information.
- Toll fraud — calls to premium-rate numbers, international hot spots, or numbers connected to known fraud schemes.
- Telemarketing without consent — including SMS marketing without express written consent.
- Resale / forwarding services — using Abbax to power call-forwarding businesses, vanity number services, or similar resale operations.
- Continuous open calls — "always-on" calls intended to keep lines occupied (e.g., baby monitors, broadcast).
- Stress-testing — load-testing our infrastructure without prior written approval.
- Cryptocurrency mining or other unauthorized compute-intensive workloads via the API.
- PHI transmission without a signed BAA.
- Any illegal use — drug trafficking, fraud, harassment, CSAM, or violation of export controls.
9. Enforcement
If we detect usage that exceeds these limits or violates this policy, we'll take a proportionate response:
- Notice — for soft limits, we'll email you with the data and give 7 days to adjust.
- Throttling — for sustained overuse, we may reduce throughput rather than terminate.
- Overage billing — for metered limits (fax pages, AI actions), overage charges apply automatically.
- Suspension — for prohibited usage (robocalling, fraud, CSAM), we suspend immediately and investigate.
- Termination — for repeat or egregious violations, we may terminate per the Terms of Service.
We make every effort to handle enforcement fairly and transparently. If you believe an action was taken in error, contact appeals@abbax.com within 30 days for review.
10. Enterprise exceptions
Enterprise customers with signed MSAs may negotiate custom limits, dedicated capacity, and bespoke SLAs. Contact your CSM or sales@abbax.com to discuss capacity reservations, dedicated trunk groups, or special-case workloads.