Key Takeaways
- use your android phone as sms mms gateway api fields for attachments: treat type/attachments URLs as patterns — Developer Center owns live parameters.
- The phone must be able to fetch reachable HTTPS media.
- MMS costs more airtime and fails differently than SMS.
- Priced by devices and SMS send volume. You use your own phone and operator SMS credit. BYO Android + operator credit.
- Default transactional alerts to SMS; use MMS only when media is required.
- Free is 300 SMS lifetime; paid from $19/month.
Attachment fields are conceptual
Search intent for use your android phone as sms mms gateway api fields for attachments is how media rides the same Android gateway as SMS. Service pricing is based on device count and total SMS sent through the gateway. This spoke does not freeze live JSON — confirm every field in Developer Center. Product context: MMS gateway. Phone hub: Android phone as SMS gateway.
If the handset cannot fetch the URL, the API accepted a wish, not a message. Public HTTPS (or a short-lived signed URL the phone can reach) beats private buckets.
Fields teams usually need
| Field (conceptual) | Intent | Caveat |
|---|---|---|
| type | Signal MMS vs SMS | Confirm exact enum/string in Developer Center |
| to / text | Recipient + caption | Caption length still matters for UX |
| attachments[] | URLs the handset can GET | Auth walls and private buckets break fetches |
| deviceIds | Route to MMS-capable SIM/phone | Not every handset/OEM path is equal |
How the handset fetches media
Control plane stores the job; the paired Android retrieves attachments over its data path, then submits MMS via the carrier. Wi-Fi/captive portals and expired signed URLs are common failure modes — monitor device connectivity separately from HTTP accept.
Size, MIME, and carrier reality
Operators throttle oversized media and exotic MIME types. Prefer compressed JPEG/PNG. Priced by devices and SMS send volume. You use your own phone and operator SMS credit. MMS still spends operator balance — often more than SMS.
MMS attachment checklist
- Confirm live fields in Developer Center.
- Reachable HTTPS URLs from the phone network.
- MMS-capable device/SIM selected.
- Fallback SMS link when media fails.
- BYO Android + operator credit.
Next steps
Send one staff MMS canary with a tiny public image. Setup. Pricing. Downloads.
Related product pages
Jump to the live product docs for this topic—not another long-form article.
- MMS gateway on your own SIMMultimedia where supported
- SMS API documentationLive endpoint reference
- device and SMS volume pricingPlans and allowances
- Android SMS gateway product guideDefinition, product, and how to buy
