Supported today and coming soon
This page lists what SF Trunk does today and what is still to come. If something is not in the Supported today column, plan as if it is not available.
Roadmap items have no dates
Items under Coming soon are planned, not committed to a date. If one of them blocks you, tell us at hello@superfone.in. Customer demand decides the order.
By area
| Area | Supported today | Coming soon |
|---|---|---|
| Trunk | Each trunk belongs to one Superfone account and has its own address, <label>.sft.superfone.co.in. The label is generated and never changes | |
| Inbound (origination) | Calls to your attached numbers are delivered to one SIP host and port that you provide. Tested end to end on real phone calls with two-way audio. An optional fallback destination is tried once when your primary is down | Several destinations with priority and weight |
| Outbound (termination) | Your PBX sends calls to your trunk FQDN and we deliver them to the Indian phone network. Tested end to end on real phone calls | |
| Destinations | Indian phone numbers only | |
| Numbers | Many numbers per trunk. A number is on exactly one trunk or one SFVoPI app at a time, and attaching a number that is on another trunk or app returns an error instead of moving it | |
| Security | Your trunk FQDN identifies your trunk | Username/password (SIP digest) authentication |
| Caller ID | Outbound calls must use one of your trunk's numbers as the caller. See Outbound calls | |
| Transport | SIP over UDP or TCP, port 5060. See Transport | TLS for signalling, and SRTP for media |
| Codecs | G.711 A-law (PCMA) and G.711 µ-law (PCMU). We do not transcode | Codec profiles per trunk, and checks that a number's codec matches the trunk |
| Capacity | Organisation CPS and concurrent-call limits, set by Superfone to match what you bought. Optional per-trunk limits, set by you | |
| Wallet | A call starts only when your wallet balance has atleast Rs. 200 | |
| Recording | Both directions. Each trunk has its own recording setting. When it is not set, calls follow the call recording setting of your Superfone number | |
| Call records | Each call record carries your trunk FQDN and marks the call as a trunk call. Recordings can be retrieved like any other Superfone recording | |
| Call transfer to Superfone app | REFER from your PBX to the phone number of a Superfone user in your organisation, with an optional reason shown to the agent. See Call transfer to Superfone app | |
| Call length | Up to one hour per call | |
| Management | Create, list, view, update and delete a trunk, and attach and detach numbers, with the SF Trunk API. Use an API key from the web dashboard, or the session of an account owner or manager. Superfone sets organisation limits and can suspend a trunk. You can set lower limits per trunk |
Organisation call limits ship with the org-limits release.
Next Steps
- Getting Started: set up your PBX for SF Trunk
- Limits and billing: how capacity and the wallet work today
- FAQ: common questions