The network

Core sites carry traffic between regions; edge sites terminate registrations close to your devices. The map draws from the same table as the list below, so the picture cannot disagree with the facts.

Points of presence: Mogadishu (MGQ), Hargeisa (HGA), Nairobi (NBO), Djibouti (JIB), Addis Ababa (ADD), Dubai (DXB), Istanbul (IST), Frankfurt (FRA), Amsterdam (AMS), London (LON), Johannesburg (JNB), Lagos (LOS), Singapore (SIN), New York (NYC).

Points of presence

Points of presence with role, status and SIP hostname.
SiteCodeRoleStatusSIP host
Mogadishu Somalia MGQ Core Live sip-mgq.voip.so
Nairobi Kenya NBO Core Live sip-nbo.voip.so
Dubai United Arab Emirates DXB Core Live sip-dxb.voip.so
Frankfurt Germany FRA Core Live sip-fra.voip.so
London United Kingdom LON Core Live sip-lon.voip.so
New York United States NYC Core Live sip-nyc.voip.so
Hargeisa Somalia HGA Edge Live sip-hga.voip.so
Addis Ababa Ethiopia ADD Edge Live sip-add.voip.so
Istanbul Türkiye IST Edge Live sip-ist.voip.so
Amsterdam Netherlands AMS Edge Live sip-ams.voip.so
Johannesburg South Africa JNB Edge Live sip-jnb.voip.so
Lagos Nigeria LOS Edge Planned
Singapore Singapore SIN Edge Live sip-sin.voip.so
Djibouti Djibouti JIB Peering Live

What runs on it

The switching core is FusionPBX on FreeSWITCH — the same software carriers and integrators deploy themselves. We did not write a proprietary softswitch, and we do not pretend to have. What we built is everything around it: provisioning, rating, billing, and a portal that a non-specialist can operate.

That choice has a consequence worth stating plainly. Because the core is standard, the capabilities are standard too — if you outgrow us, your dial plan concepts move to any other FreeSWITCH or Asterisk platform. We would rather compete on operations than on lock-in.

Failure behaviour

Calls in progress survive a site becoming unreachable, because media is already flowing directly. New calls route to the next available site. Registrations re-establish on the device's next attempt, typically within a minute.

If our provisioning layer is unavailable, the switch keeps switching. Signup and portal changes queue and apply when it returns, which is why the portal tells you a change is "queued" rather than claiming success it cannot confirm.

SIP proxy
sip.voip.so
UDP / TCP port
5060
TLS port
5061
RTP range
16384-32768
Codecs
OPUS · G722 · PCMU · PCMA · G729
Media security
SRTP optional or required
DTMF
RFC 2833 · SIP INFO · in-band
Fax
T.38 on supported routes
STUN
stun.voip.so:3478
Switching core
FusionPBX / FreeSWITCH

Test it against your own PBX

Create an account, point a trunk at us, and place a call. No commitment.