#ifndef _LIBGSMD_VCALL_H #define _LIBGSMD_VCALL_H #include /* Voice Calls */ /* * call related supplementary services from 3GPP TS 02.30 4.5.5.1 * R - Release * A - Accept * H - Hold * M - Multiparty */ enum lgsm_voicecall_ctrl_proc { LGSM_VOICECALL_CTRL_R_HLDS = 0, // 0 LGSM_VOICECALL_CTRL_UDUB = 1, // 0 LGSM_VOICECALL_CTRL_R_ACTS_A_HLD_WAIT = 2, // 1 LGSM_VOICECALL_CTRL_R_ACT_X = 3, // 1x LGSM_VOICECALL_CTRL_H_ACTS_A_HLD_WAIT = 4, // 2 LGSM_VOICECALL_CTRL_H_ACTS_EXCEPT_X = 5, // 2x LGSM_VOICECALL_CTRL_M_HELD = 6, // 3 }; /* Refer to GSM 07.07 subclause 7.12 and 02.30 subclause 4.5.5.1 */ struct lgsm_voicecall_ctrl { enum lgsm_voicecall_ctrl_proc proc; int idx; }; /* Initiate an outgoing voice call */ extern int lgsm_voice_out_init(struct lgsm_handle *lh, const struct lgsm_addr *number); /* Accept incoming voice call */ extern int lgsm_voice_in_accept(struct lgsm_handle *lh); /* Terminate outgoing (or incoming) voice call */ extern int lgsm_voice_hangup(struct lgsm_handle *lh); /* Send DTMF character during voice call */ extern int lgsm_voice_dtmf(struct lgsm_handle *lh, char dtmf_char); /* Get call status */ extern int lgsm_voice_get_status(struct lgsm_handle *lh); /* Call control */ extern int lgsm_voice_ctrl(struct lgsm_handle *lh, const struct lgsm_voicecall_ctrl *ctrl); #endif