Hello VitalPBX Community and Support Team,
I wanted to bring to light an ongoing concern our organization has faced regarding the support of T.38 for SIP faxing with VitalPBX (Outbound faxes).
As many of you might know, T.38 is fundamental for dependable fax transmissions over IP networks. Our business is heavily dependent on this feature. Most of our customers are in the medical industry. However, we’ve come across specific challenges in achieving robust support for this protocol:
- Integration with Telnyx: We’ve found that our PBX does not accept t.38 invites when using Telnyx and other trunk providers that support t.38. This has led to difficulties in ensuring reliable fax transmissions.
- Issues with ATA: Similarly, when utilizing an ATA, we noticed that the ATA sends a t.38 invite, which is then declined by the PBX. This again hampers our faxing capabilities.
- Helpdesk Responses: On seeking assistance, the feedback from the helpdesk has sometimes been non-specific, missing the particular nuances of our issue. There have been extended delays between our queries and the responses, which impacts our operations.
Given the reliance on paid support, our expectation was for a more streamlined and precise troubleshooting experience.
By addressing this here, our hope is to not only seek a resolution but also to contribute to the community by sharing our experience. We believe that transparency can pave the way for constructive solutions and would appreciate insights from both the community and the VitalPBX team.
If anyone has encountered similar challenges, especially concerning T.38 for SIP faxing, or has any insights into resolving these, your input would be invaluable. We experienced these issues with the lastest version of VitalPBX 3 and 4.
Thank you for taking the time to understand our concerns. We’re optimistic about finding a path forward together.