Services qualified for Lync

SIP trunking enables connectivity to the public switched telephony network (PSTN) directly over SIP.

E-911 service providers provide routing of emergency calls from Lync to the correct emergency dispatch center responsible for deploying emergency responders for the given client location. To learn about E-911, see E-911 Services

SIP trunking services qualified for Lync Server 2013

Carrier Service Name Qualified with TLS & SRTP
Accelerated Connections ACI SIP Trunk
AT&T AT&T IP Flexible Reach Service
Broad-Connect SIP Trunking
BroadSoft Adaption OfficeTrunk
BROKERTEAM SIP Trunk Brokerteam - Winvision Voice
BT Global Services BT One Voice
C3NTRO Lync SIP Connect
Circuit ID Cloud SIP
Lync Trunk Cirque A/S
Colt Technology Services VoIP Access
Columbus Business Solutions CBS Cloud Voice
Comscentre Comscentre Sip Connect for Microsoft Lync
Elisa SIP Trunking
Fujitsu SIP Trunk
G12 Communications Lync SIP Trunks
Gamma SIP Trunking
GlobalConnect GlobalConnect SIP Trunking
IntelePeer IntelePeer SIP Trunking<
Internet Solutions Internet Solutions SIP Trunk
Interoute Interoute One
ipvision a/s VIP Trunk
Kordia Onkor Voice
Level 3 Level 3 Communications SIP Trunking
Magnetic North Cloud PBX
Netstream Lync Connect
Masergy Communications Intelligent SIP Trunk
One Source Networks Lync Trunking
Orange Business Services Business Talk (SIP Trunking)
Peerless Network Enterprise SIP Trunking
Phonero Phonero SIP-trunk
Pure-IP OneLync SIP Trunks
QSC AG IPfonie extended link
Redwood Technologies SIP Trunk
Rogers Business Solutions Rogers Business Solutions (RBS) SIP Trunking
SBC Europe SIP Trunking for Microsoft Lync (2013)
SoTel Systems, LLC SIP Trunking
Sprint Global SIP Trunking
Swisscom (Switzerland) VoIP Gate
Tata Communications Global SIP Connect
TDC TDC Business Trunk
Telappliant talkAssure SIP Trunking for Microsoft Lync
Telavox SIP Trunk
Tele2 VoIP Connect
Telefonica Business Solutions SIP Trunking
Telecom New Zealand / Gen-I Voice Connect
TeliaSonera Finland Oyj Sonera Business Voice Access
Telio Telecom AS Telio SipTrunk
Telkomsel Telkomsel Connect
Telus IP Trunking
Thinktel SIP Trunking
toplink GmbH tpl_sip.business LC
T-Systems International GmbH Corporate SIP Germany
tw telecom Managed SIP Services
Verizon Business IP Trunking Services
Vodafone GmbH IP Anlagen-Anschluss
Vodafone Netherlands Vodafone Office Voice (VoV) and Corporate Net over IP (CNoIP)
Voxbone SA VoxDID, Vox800
West IP Communications MaxxConnect
Widevoice, LLC SIMPLE LYNC TRUNK
XO Communications XO SIP Services

SIP trunking services qualified for Lync Server 2010

Carrier Service Name Qualified with TLS & SRTP
AinaCom SIP Trunk
AT&T AT&T IP Flexible Reach Service
Bicentel Lync SIP Connect
BroadSoft Adaption OfficeTrunk
BT Global Services BT Onevoice
Cellip Sip-trunk Lync
CenturyLink SIP Trunk
Cirque A/S LYNC Trunk
Colt Colt VoIP Access
Elisa SIP Trunking
Fujitsu SIP Trunk
Gamma SIP Trunking
Global Crossing SIP Trunking Services
GlobalConnect GlobalConnect SIP Trunking
HIPCOM SIP Trunking
IECI IECI
Infopact Network Solutions SIP Trunk
IntelePeer IntelePeer SIP Trunking
Interoute InterouteOne
Kordia Onkor Voice
KPN VoIP Connect
Kvantel Kvantel SIP Connect Lync
Level 3 Level 3 Communications SIP Trunking
MyNetFone MyNetFone SIP Trunking
Netstream Lync Connect
OneXS OneConnect SIP Trunk
Optimus SIP Trunk
Orange Business Services SIP Trunking
Phonect Phonect SIP
Phonero Phonero SIP-trunk
Pure IP OneLync SIP Trunks
QSC AG IPfonie extended link
Rogers Business Solutions Rogers Business Solutions (RBS) SIP Trunking
SpeakUp speakup trunk
Sprint Global SIP Trunking
Swisscom Swisscom VoIP Gate
Tata Communications Global SIP Connect
TDC TDC Business Trunk
Telavox SIP Trunk
Tele2 VOIP Connect
Telenet Telenet SIP Trunking
Telenor Telenor Samordnet kommunikasjon (Unified Communication)
Telenor Danmark A/S Telenor SIP Trunk
Telesphere Private SIP for Lync
TeliaSonera Finland Oyj Sonera Business Voice Access
Telus IP Trunking
ThinkTel SIP Trunking
Uni-tel SIP Trunk
Ventelo AS SIP Trunk
Verizon Business IP Trunking Services
Vodacom Business One Net Connect
Vodafone Netherlands Office Voice / OneVoice
Voiceworks Voice Connect
VoIPunlimited Lync Trunk
West IP Communications MaxxConnect
Windstream Dynamic IP
XO Communications SIP Trunk