For most phone models no direct control is supported. These must be configured as [Secial Device] = "Standard". The call setup is made via "Originate" command of the Asterisk Manager Interface. |
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Free hand mode via Call-Info : Answer-After=0 |
Some SIP phones supports an Auto-Answer via INVITE SIP-Header "Call-Info Answer-After=0". To force the Asterisk PBX to send this addiational header, a special patch is necessary.
- copy patch file to your asterisk source dir and then run the following command:
- patch -p0 -i originate_auto_answer_1.x.patch
- If this patch does not suite to your asterisk version, you can patch it manually according description in chan_sip.c.patch-originate-auto-answer.txt.
Ask your PBX vendor if this patch is supported. |
See also:
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