SIP Provider NetCom BW (DE) (kb5138)

The information in this article applies to:

  • SwyxWare 11.00

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Information und configuration hints for SIP provider NetCom BW (Germany).


General information

The SIP trunk of NetCom BW was first tested and released with SwyxWare

The actual connection to the SIP trunk of NetCom BW is made via a separate SBC. SwyxWare itself connects to the SBC via a registerless SIP trunk. The static, local IP address of the SBC is required for configuration. The SBC must be configured to address port 65002 of SwyxWare Server as SIP endpoint and not the default SIP port 5060.

The actual interoperability tests were performed by NetCom BW itself, not by Swyx.


SwyxWare: The SIP Trunk of NetCom BW can be used without restrictions from SwyxWare on. When using an earlier version of SwyxWare incompatibilities cannot be excluded and use is at your own risk.

SwyxON: Not supported


When creating the SIP trunk group, select the profile'NetCom BW (DE)'. If the profile is not included in the corresponding list, you can download the required CustomProviderProfiles.config for SwyxWare at the end of this article. For more information about using this file, see Configuration and Adaptation of SIP Providers via Provider Profiles (kb3436).

Because of the connection to the SBC it is not possible to pre-assign the entry for the registrar / proxy server in the "SIP" tab in the properties of the trunk group. The IP address of the SBC must be entered here after the trunk group has been created.

When creating the actual SIP trunk, all audio codecs except G.711 can be deselected  in the codec dialog. T.38 as supported codec must be deselected.

Tested Features
  • Incoming/outgoing national calls
  • Correct Calling Line Identification (CLI) on national and calls
  • CLIP No Screening in accordance with RFC3325
  • Holding and retrieving calls
  • Toggeling between two calls
  • Call transfer
  • Conferencing
  • Mutually supported codecs:
    • G.711a
  • Incoming/outgoing DTMF signaling in accordance with via RFC2833
  • FAX transmission via G.711


Test date
02/07/2018 with SwyxWare

Overview of tested SIP provider


As far as software supplied or used by us, includes open source elements the additional terms under apply in addition. An overview which products from the Swyx portfolio include open source elements and which open source license is relevant can be found under

The third-party contact information included in this article is provided to help you find the technical support you need. This contact information is subject to change without notice. Swyx in no way guarantees the accuracy of this third-party contact information nor is responsible for it's content.


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