Adding DTMF (with SIP Info message) sending

level7systems / php-sip

PHP SIP User Agent class

MIT License

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Adding DTMF (with SIP Info message) sending #10

Closed ErikDorstel closed 1 year ago

ErikDorstel commented 1 year ago

This pull request enables the sending of SIP Info messages and the processing of the SIP Response Code 183. This enables the sending of DTMF signals without an active RTP session. An example documents the use of the "setMethod" function to send SIP Info messages.