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sig_analog: Add Called Subscriber Held capability.

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This adds support for Called Subscriber Held for FXS
lines, which allows users to go on hook when receiving
a call and resume the call later from another phone on
the same line, without disconnecting the call. This is
a convenience mechanism that most real PSTN telephone
switches support.

ASTERISK-30372 #close

Resolves: #240

UserNote: Called Subscriber Held is now supported for analog
FXS channels, using the calledsubscriberheld option. This allows
a station  user to go on hook when receiving an incoming call
and resume from another phone on the same line by going on hook,
without disconnecting the call.

(cherry picked from commit 52283301e8)
This commit is contained in:
Naveen Albert
2023-08-09 22:04:23 +00:00
committed by Asterisk Development Team
parent 8bf9b1d966
commit 534269e3e6
5 changed files with 60 additions and 0 deletions
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2
channels/sig_analog.h
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@@ -289,6 +289,7 @@ struct analog_pvt {
unsigned int ani_wink_time:16; /* Safe wait time before we wink to start ANI spill */
unsigned int answeronpolarityswitch:1;
unsigned int calledsubscriberheld:1; /*!< TRUE if a single incoming call can hold an FXS channel */
unsigned int callreturn:1;
unsigned int cancallforward:1;
unsigned int canpark:1;
@@ -330,6 +331,7 @@ struct analog_pvt {
/* XXX: All variables after this are internal */
unsigned int callwaiting:1; /*!< TRUE if call waiting is enabled. (Active option) */
unsigned int cshactive:1; /*!< TRUE if FXS channel is currently held by an incoming call */
unsigned int dialednone:1;
unsigned int dialing:1; /*!< TRUE if in the process of dialing digits or sending something */
unsigned int dnd:1; /*!< TRUE if Do-Not-Disturb is enabled. */