Using SIP headers in the Amazon Chime SDK PSTN audio service

Publisher

Amazon Web Services

URL

https://docs.aws.amazon.com/chime-sdk/latest/dg/sip-headers.html

Published

unknown

Updated

unknown

Accessed

2026-10-02

HTTP status

200

License

AWS documentation, CC BY-SA 4.0 for doc text per AWS docs repository terms; treat as restricted; no-redistribution; short excerpts and locators only

Source notes citing this source

• Amazon Chime SDK PSTN audio SIP headers can be at most 2048 characters long. in context
• The Amazon Chime SDK PSTN audio SipHeaders field accepts only keys with the x- prefix, the User-to-User header or the Diversion header. in context
• In the Amazon Chime SDK PSTN audio service X-AMZN is a reserved header, and supplying it fails the action with an InvalidActionParameter error. in context

Cite this source record

APA

WarmTransfer. (2026, October 2). Using SIP headers in the Amazon Chime SDK PSTN audio service. WarmTransfer. https://warmtransfer.net/knowledge/sources/aws-chime-sdk-sip-headers

BibTeX

@misc{warmtransfer-aws-chime-sdk-sip-headers,
  title  = {Using SIP headers in the Amazon Chime SDK PSTN audio service},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/aws-chime-sdk-sip-headers},
  note   = {Amazon Web Services, accessed 2026-10-02}
}