looking for someone to investigate why SIP Client is not connecting trace the sip packet

I am looking for someone who can help me investigate why my Softphone SIP Client is not connecting and trace the SIP packets. The ideal candidate for this project should have experience in SIP protocols and troubleshooting.

Skills required:
- Strong knowledge of SIP protocols and troubleshooting
- Experience with Softphone SIP Clients
- Familiarity with Windows operating system
- Ability to trace and analyze SIP packets

Responsibilities:
- Investigate and identify the reasons why the Softphone SIP Client is not connecting
- Trace and analyze SIP packets to identify any issues or errors
- Work with the specific SIP provider to troubleshoot and resolve connectivity problems

Please note that the Softphone SIP Client is running on a Windows operating system and I am using a specific SIP provider.