diff options
Diffstat (limited to 'channels/chan_zap.c')
-rw-r--r-- | channels/chan_zap.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/channels/chan_zap.c b/channels/chan_zap.c index 231cd6fbd..6574bff15 100644 --- a/channels/chan_zap.c +++ b/channels/chan_zap.c @@ -4282,6 +4282,11 @@ static struct ast_frame *zt_handle_event(struct ast_channel *ast) ast_setstate(ast, AST_STATE_UP); p->subs[index].f.frametype = AST_FRAME_CONTROL; p->subs[index].f.subclass = AST_CONTROL_ANSWER; + /* If aops=0 and hops=1, this is necessary */ + p->polarity = POLARITY_REV; + } else { + /* Start clean, so we can catch the change to REV polarity when party answers */ + p->polarity = POLARITY_IDLE; } } } @@ -6933,6 +6938,14 @@ static void *ss_thread(void *data) if (i & ZT_IOMUX_SIGEVENT) { res = zt_get_event(p->subs[index].zfd); ast_log(LOG_NOTICE, "Got event %d (%s)...\n", res, event2str(res)); + /* If we get a PR event, they hung up while processing calerid */ + if ( res == ZT_EVENT_POLARITY && p->hanguponpolarityswitch && p->polarity == POLARITY_REV) { + ast_log(LOG_DEBUG, "Hanging up due to polarity reversal on channel %d while detecting callerid\n", p->channel); + p->polarity = POLARITY_IDLE; + callerid_free(cs); + ast_hangup(chan); + return NULL; + } res = 0; /* Let us detect callerid when the telco uses distinctive ring */ @@ -7305,6 +7318,12 @@ static int handle_init_event(struct zt_pvt *i, int event) case SIG_FXSLS: case SIG_FXSKS: case SIG_FXSGS: + /* We have already got a PR before the channel was + created, but it wasn't handled. We need polarity + to be REV for remote hangup detection to work. + At least in Spain */ + if (i->hanguponpolarityswitch) + i->polarity = POLARITY_REV; if (i->cid_start == CID_START_POLARITY || i->cid_start == CID_START_POLARITY_IN) { i->polarity = POLARITY_REV; ast_verb(2, "Starting post polarity " |