diff options
Diffstat (limited to 'channels/sig_analog.c')
| -rw-r--r-- | channels/sig_analog.c | 33 |
1 files changed, 22 insertions, 11 deletions
diff --git a/channels/sig_analog.c b/channels/sig_analog.c index f8b1ede45..34935ef33 100644 --- a/channels/sig_analog.c +++ b/channels/sig_analog.c @@ -2119,16 +2119,27 @@ static void *__analog_ss_thread(void *data) int i = 0; int oldlinearity; cs = NULL; - ast_debug(1, "Receiving DTMF cid on " - "channel %s\n", chan->name); + ast_debug(1, "Receiving DTMF cid on channel %s\n", chan->name); oldlinearity = analog_set_linear_mode(p, index, 0); - res = 2000; + /* + * We are the only party interested in the Rx stream since + * we have not answered yet. We don't need or even want DTMF + * emulation. The DTMF digits can come so fast that emulation + * can drop some of them. + */ + ast_set_flag(chan, AST_FLAG_END_DTMF_ONLY); + res = 4000;/* This is a typical OFF time between rings. */ for (;;) { struct ast_frame *f; res = ast_waitfor(chan, res); if (res <= 0) { + /* + * We do not need to restore the analog_set_linear_mode() + * or AST_FLAG_END_DTMF_ONLY flag settings since we + * are hanging up the channel. + */ ast_log(LOG_WARNING, "DTMFCID timed out waiting for ring. " "Exiting simple switch\n"); ast_hangup(chan); @@ -2138,15 +2149,18 @@ static void *__analog_ss_thread(void *data) break; } if (f->frametype == AST_FRAME_DTMF) { - dtmfbuf[i++] = f->subclass.integer; + if (i < ARRAY_LEN(dtmfbuf) - 1) { + dtmfbuf[i++] = f->subclass.integer; + } ast_debug(1, "CID got digit '%c'\n", f->subclass.integer); - res = 2000; + res = 4000;/* This is a typical OFF time between rings. */ } ast_frfree(f); if (chan->_state == AST_STATE_RING || chan->_state == AST_STATE_RINGING) { break; /* Got ring */ } } + ast_clear_flag(chan, AST_FLAG_END_DTMF_ONLY); dtmfbuf[i] = '\0'; analog_set_linear_mode(p, index, oldlinearity); @@ -2154,8 +2168,7 @@ static void *__analog_ss_thread(void *data) /* Got cid and ring. */ ast_debug(1, "CID got string '%s'\n", dtmfbuf); callerid_get_dtmf(dtmfbuf, dtmfcid, &flags); - ast_debug(1, "CID is '%s', flags %d\n", - dtmfcid, flags); + ast_debug(1, "CID is '%s', flags %d\n", dtmfcid, flags); /* If first byte is NULL, we have no cid */ if (!ast_strlen_zero(dtmfcid)) { number = dtmfcid; @@ -2207,12 +2220,10 @@ static void *__analog_ss_thread(void *data) if (p->cid_signalling == CID_SIG_V23_JP) { res = analog_on_hook(p); usleep(1); - res = 4000; - } else { - /* Finished with Caller*ID, now wait for a ring to make sure there really is a call coming */ - res = 2000; } + /* Finished with Caller*ID, now wait for a ring to make sure there really is a call coming */ + res = 4000;/* This is a typical OFF time between rings. */ for (;;) { struct ast_frame *f; res = ast_waitfor(chan, res); |