SIP Trunking Solutions
A seamless and cost effective IP based connection, allowing you to make calls from your existing phone systems. 5GN SIP Trunking enables self-paced migration from existing voice infrastructure to a simplified and future proof collaboration platform.
| Parameter | Details |
|---|---|
| Signalling Protocols | • SIP over UDP • SIP over TCP |
| Direct Number Availability (DID) | • Australia • New Zealand |
| Calling Line ID | • Present/hide using RFC3325 Privacy header • Present/hide using a prefix • Present any of trunk DIDs (RFC3325) • Overstamp CLI for any call via SIP trunk |
| NAT/Firewall Traversal | • Automatic NAT traversal for RTP • Keep-alive packets for idle SIP trunks |
| Security | • Only Australian IPs are allowed to connect by default* • Requires mandatory registration using username and password • Outgoing calling profiles can be applied to restrict different types of calls |
| Codecs Supported | • G.711A • G.711u |
| Numbering Plan for CLI, CLD | National dial-plan (i.e. 10 digits for AU geographical numbers, 0011 for international access) |
| Redundancy | • SBCs are available for SIP registrations in VIC and QLD (the same user cannot register twice) • Multiple pilot users provisioning with no additional charge • Simultaneous registration of different pilot users belonging to the same SIP trunk • Overflow, load-balancing, least or most idle routing policies are available to distribute calls among registered pilot users • Route exhaust action to send calls to an external number in case if SIP trunk is unregistered or unreachable (customer site is down) |
| Scalability | • Instant upgrade for number of channels • Add or remove DID to/from SIP trunk without service interruption • On-Net routing for voice services |
* SIP enabled phone systems