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SIP General Settings and PBX Compatibility

SIP General Settings and PBX Compatibility

Compatibility Notice

If a PBX is SIP compatible, then it will generally be immediately compatible with our SIP trunks.

The most important features for testing the compatibility of a PBX are:

  • Ability to set registration time at 120 seconds (halves to 60s) where registration is required for inbound calls
  • Ability to enter a username and password for authentication on outgoing calls
  • Authenticate OPTIONS pings as failure to have this will result in the PBX being blocked.

If your PBX is not SIP compatible (i.e a legacy PBX), then it may still be compatible with a SIP to PSTN Gateway connected to the PBX, such as those made by Vega/Sangoma.

Please call us for confirmation if you plan to connect one to the service.

SIP General Settings and IP PBX Compatibility with VoiceHost
Protocols and encapsulation

SIP 2.0 (RFC3261 and associated RFCs) for signaling
RTP for media encapsulation
UDP transport (default)
TCP transport (optional)
TLS | SRTP

VoiceHost SIP Trunk Gateways & Firewall Configuration

For FQDN see your VoiceHost control panel.

Firewall configuration:
37.157.52.128/25(37.157.52.130 - 37.157.52.254)
37.157.53.192/28(37.157.53.194 - 37.157.53.206)
37.157.54.192/28(37.157.54.194 - 37.157.54.206)
185.91.41.16/28(185.91.41.18 - 185.91.41.32)

IP Ports

5060 UDP (SIP signalling)
5061 TCP TLS (SECURE SIP signalling)
10000-65335 UDP (RTP and SRTP stream)
TCP and UDP port 389 (LDAP) and 636 (LDAPS)

Outbound Call Authentication Username/password authentication (default) OR IP authentication
DTMF (Tones)RFC2833 (out-of-band)
Audio CodecsG.711 a-Law, G.711 u-Law, G.722 (HD), GSM 6.10 FR (Full Rate) OPUS Narrowband and OPUS Wideband
Video CodecsH.264/MPEG-4, H.263, H.263+, VP8
Codec Transcoding

Audio - Supported
Video - Not Supported

Incoming number formatsE.164: +countrycode followed by the number, less the leading zero, e.g. +441603904090 (SIP trunk can be configured to strip the plus on the portal)
Outgoing number formatsUK format (e.g. 01603904090) or full E.164 format (e.g. +441603904090).
Voicemail to EmailThe email servers send attachments as a *.wav
Email Server: relay01.tn19-f9.lon.gb.voicehost.co.uk (37.157.52.160)

Compatible IP PBXs

Asterisk based platforms

IP Cortex
FreePBX v2
TrixBox
SARK
Asterisk

FreeSWITCH based platforms

FreePBX v3
FreeSWITCH

Broadsoft Broadsoft based platforms
MetaswitchMetaswitch based platforms
PanasonicNCP500 and NS1000 (accredited)
MitelMitel 3300 (MCD) (accredited)
Samsung OfficeServ 7000 series (accredited)
Avaya IP Office Avaya IP Office
LG LG iPECS
NEC NEC SL1100 and SV8100 (accredited in IP authentication mode)
Gigaset Gigaset PRO T300/500
Snom snomONE PBX
Cisco Cisco UC320 and IOS PBX
3CX 3CX Phone System (Accredited)
Grandstream Grandstream PBX
iQ iQ PBX
Draytek Draytek PBX
Yeastar Yeastar S-Series IP-PBX(accredited)
Compatible SBC Manufacturers
OpenSIPS
GENBAND
SONUS
Kamailio
OpenSER
Allo BLOX eSBC
ACME Packet
Metaswitch
Dialogic (IP authentication only)
Incompatible Platforms and Hardware (Cannot be used)
Microsoft Lync
NEC XN120
Skype for business