SIP Provider VoiceFlex (UK)

The SIP Trunk from VoiceFlex is released for central connection in the data center.

 

When creating the actual SIP trunk, a SIP URI must be entered after entering 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: +44 151 223344550... +44 151 223344559

In this case, the SIP URI must be entered in the format +441512233445*@*.

Codec Configuration

During creation of the actual trunk, in the codec configuration dialog, T.38 has to be deselected as supported codec. This step could also be performed afterwards in the properties of the SIP trunk, underneath the 'Codecs' tab.

 

• Incoming/outgoing national calls
• Incoming/outgoing international calls
• Correct Calling Line Identification (CLI) on national and international calls
• 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 G.711

Restrictions

Number supression is not supported

Test date

22/09/2023 on SwyxWare 13.28

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the Swyx solution may occur due to changes in the SIP connection on the provider side or that the provided profile is no longer valid.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.