Ports and IPs for SIPcity’s Network

The IP addresses, ports, and protocols required to connect your devices to SIPcity.

Supported Protocols

  • UDP (default) — Low latency, 30-second keep-alive
  • TCP — Reliable transport, 15-minute keep-alive
  • TLS — Encrypted signalling over TCP
  • SRTP — Encrypted media streams

Network connectivity

  • Equinix Fabric private connections to tier-one Australian carriers
  • BGP routing optimisation
  • AS Number: AS63971
  • Firewall IP Range: 103.55.116.0/24
  • SIP Peering IP: 103.55.116.65

Ports and IP settings

Service Address or Port
Proxy call.sipcity.com.au
TCP/TLS Proxy call.sipcity.com.au port 5061
SIP Peering 103.55.116.65 (or 103.55.116.0/24)
SIP Registration 103.55.116.65 (call.sipcity.com.au)
SIP Port — UDP/TLS 5060, 5061 (ensure transport = TLS)
RTP IPs 103.55.116.58, 103.55.116.37, 103.55.116.36, 103.55.116.35
RTP range 30,000–40,000 (set by customer equipment)
Supported Codecs G711a, G711u, G722, GSM, G729
Unsupported Codecs AMR, G723, Opus
DTMF RFC2833, RFC4733
Dial String (International) E164
P-Asserted-Identity P-Asserted-Identity: <sip: [email protected]:5060>
Packetisation time 20 ms

Other ports

Service Port
RTP and UDPTL Set by your router (our range: 30,000–40,000)
T.38 (faxing) 4,000–6,000
Fax fax.sipcity.com.au
Primary NTP au.pool.ntp.org

Network connectivity via Equinix Fabric

For customers connecting to our services, we use Equinix Fabric to establish secure private virtual connections to multiple tier-one Australian carriers. Our BGP routing is optimised to select the best path across these dedicated connections.

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