SIP Provider GELSEN-NET (DE)

General

The Voice NGNadaptive SIP Trunk from GELSEN-NET was first tested and released with SwyxWare 11.25.0.0.

The Voice NGNadaptive SIP Trunk from GELSEN-NET can only be used on Internet connections provided by GELSEN-NET. For this, GELSEN-NET will provide a separate geateway, which also acts as SIP proxy. The Voice NGNadaptive SIP Trunk from GELSEN-NET is a SIP Trunk with user authentication, i.e. you receive information on user ID, user name and password. The names may differ, or you may only receive a name or ID with password. In this case the user ID is identical to the user name when configuring the SIP trunk in SwyxWare.

The actual interoperability tests were performed by GELSEN-NET, not by the Enreach TAP.

Platforms

SwyxWare
The Voice NGNadaptive SIP Trunk from GELSEN-NET can be used from SwyxWare 11.25.0.0 on.

SwyxON:
The Voice NGNadaptive SIP Trunk from GELSEN-NET is not suitable for central connection in the data center due to the dependency from the internet access.

Configuration

When creating the SIP trunk group, select the profile 'GELSEN-NET (DE)'.

The local IP address of the gateway which also acts as SIP proxy, is individual per customer. Therefore it is not possible to preconfigure the Registrar / Proxy Server in the "SIP" tab of the Trunkgroup Properties dialog. In field of Registrar / Proxy Server, please enter the server name or IP address provided by GELSEN-NET.

After creating the trunk group, in the property settings of the trunk group, on tab 'Profile', it is necessary to to add special number replacement rules. The following rules need to be added for inbound, calling party:
00* -> +*
+*  -> +*
0*   -> +[cc]*
*     -> +[cc][ac]*

SIP URIs

When creating the actual SIP trunk, a SIP URI must be entered after configuration of the phone number range so that incoming calls can be assigned. The assigned number block must be taken into account in the correct format.

Example:
Number block: +49 231 9988776600 ... +49 231 9988776699
In this case, the SIP URI must be entered in the format 004923199887766*@*.

CLIP No Screening

In the properties of the SIP Trunk, tab 'Number Signalling', for the feature CLIP No Screening, the option "Always use originators number" has to be selected.

Tested Features

• Incoming/outgoing national calls
• Correct Calling Line Identification (CLI) on national and calls
• CLIP No Screening
• Holding and retrieving calls
• Toggeling between two calls
• Call transfer
• Conferencing
• Mutually supported codecs: G.711a/ G.711u/ G.729
• Incoming/outgoing DTMF signaling in accordance with via RFC2833
• FAX transmission via T.38

Restrictions

None

Test date

12/10/2018 with SwyxWare 11.25.0.0

Disclaimer

Verifying interoperability between different SIP providers and the Swyx solution is part of the Enreach Technology Alliance Programme (TAP) tasks. Due to different implementations of the SIP RFCs, it is necessary to determine and provide an individual configuration for each SIP provider.

Within the TAP, Enreach tests a large number of national and international SIP providers in order to make statements about the interoperability with the Swyx solution and the functional scope of the respective SIP trunk. These results and, if needed, configuration advice are published in Help Center articles.

Enreach is in close contact with selected SIP providers to ensure a quick troubleshooting in case of incompatibilities. In addition, tests are repeated at regular intervals to ensure consistent quality.

Despite regular retests it cannot be excluded that incompatibilities with the Swyx solution may occur due to changes in the SIP connection on the provider side or that the provided profile is no longer valid. After creating the trunk group or SIP trunk, the profile settings should be compared with the provider's information and adjusted accordingly in case of deviations.

However, should incompatibilities or problems occur with a tested SIP trunk, no claims for recourse against Enreach GmbH can be derived from this. In such cases, you can contact Enreach Support via your specialist dealer.

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.