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IP PBXs and Gateways

  • [アーティクル]
  • 適用対象:
    Lync, Skype for Business

Qualified IP PBXs & Gateways

The following PSTN gateways, IP-PBX products, and relevant firmware combinations have been independently qualified for use with Lync Server.

We recommend that you visit the vendor's web site for the latest information.

Qualified for Lync 2013

Table 1 - Qualified IP PBXs & Gateways for Lync 2013

✔= Qualified    ✔+S = Qualified with SRTP & TLS

Vendor Qualified Product Software Version Tested Supported Configuration
Audiocodes Mediant 500 6.60A.236.002 Basic Gateway ✔+S
Mediant 800 6.60A.236.002 Basic Gateway ✔+S
Mediant 1000 6.60A.022.003 Enhanced Gateway ✔+S; with IPv6
Mediant 2000 6.60A.236.002 Enhanced Gateway ✔+S
Mediant 3000 6.60A.236.002 Enhanced Gateway ✔+S
Bressner UCFeatureBox UCFB-xxx r1.8-422960M Basic Gateway ✔
Cisco ISR 3845 15.1.4M6 Basic Gateway ✔

Documentation: Integrating Lync 2013 and ISR 3845 Configuration Guide v1.0

Configuration Notes:

  1. Disable REFER and RTCP support on both Lync Mediation Server and Cisco GW.
  2. While a specific ISR model was tested, any model in this series running the qualified firmware is supported.

Known Limitations:

  1. Analog devices connected to FXS ports don't support hold/resume. To support hold/resume, the FXS port needs to be controlled by a Cisco PBX.
  2. No ringback is heard when call is forwarded from a Lync Endpoint to a PSTN Endpoint. This issue can be corrected by allowing 183 without SDP on the outbound dial-peers to Lync, but this will result in no ring back on regular inbound calls.
ISR 3925 15.3(3)M1 Basic Gateway ✔

Configuration Notes:

  1. Disable REFER and RTCP support on both Lync Mediation Server and Cisco GW.
  2. While a specific ISR model was tested, any model in this series running the qualified firmware is supported.

Known Limitations:

  1. Call Park on Lync Client fails. Lync Client drops the call as the Gateway responds with "a=sendrecv" to an INVITE from Lync to place the call on hold. This issue is documented under case number CSCuo44538 with Cisco Support.
  2. As the Gateway overrides the progress indicator from Lync Server, PSTN calling party doesn't hear IVR when the Lync called party is set to simultaneous ring an IVR number with Early Media.
  3. Call Hold and transfer on Analog Endpoints fails with the recommended dial peer configuration on the ISR.
Ericsson-LG Enterprise IPECS IP-PBX IP-PBX 5.5Bd

Configuration Notes:

  1. Disable REFER support on Lync Mediation Server

Known Limitations:

  1. DNS Load Balancing and IPv6 aren't supported
Genband Experius AS 10.3 PBX
C2100 SE17 PBX
C20 CVM17 PBX

Experius AS Notes:

  1. PBX is tested and is supported only with an AudioCodes Mediant 1000 Gateway v6.2
  2. When a user configures simul-ring to a PSTN IVR number, the calling party will hear ring back not early media played from the IVR
  3. PBX doesn't support DNS load balancing
  4. PBX doesn't generate OPTIONS ping

C2100 & C20 Notes:

  1. PBX is tested and is supported only with a Genband Quantix SBC v8.3.4.0
  2. PBX doesn't support DNS Load Balancing, Media Bypass, or REFER
  3. PBX doesn't generate OPTIONS ping
Ferrari electronic AG OfficeMaster Gate 4.0-1 Enhanced Gateway ✔+S; with IPv6
HP FlexBranch Multi-Service Router (MSR) Series Comware, version 5.2, Release 2317 Enhanced Gateway ✔+S
Flexbranch MSR Comware, version 7.1 Enhanced Gateway ✔+S
Itibia Technologies OfficeTen IPPBX 2800 1.3.1.1 IP-PBX ✔+S
Mitel MiVoice MX-ONE 5.0 SP3 HF2 IP-PBX ✔+S
MiVoice Office 400 R3.1 IP-PBX ✔+S
Samsung Samsung Communication Manager Direct SIP 4.1.0

Configuration Notes:

  1. On Lync Mediation Server, Media Bypass and REFER are set to disabled. Testing found Media Bypass doesn't work for inbound calls and REFER isn't supported.

Known Limitations:

  1. DNS Load Balancing using the same FQDN for two IP addresses isn't supported by the Samsung PBX.
Patton Electronics SmartNode SN4671 6.T Basic Gateway ✔
Sangoma Technologies Netborder Express Gateway 4.4 Basic Gateway ✔
Vega 400g R100S044 Basic Gateway ✔
Vega 200g R100S044 Basic Gateway ✔
Vega 100g R100S044 Basic Gateway ✔
Sonus SBC 1000/2000 2.2.1, V 3.1.1v285 Enhanced Gateway ✔+S
VX 1200 V 4.9v55 Enhanced Gateway ✔+S


For more information on Direct SIP configurations, see PSTN Connectivity Components.