drischnie schrieb:
Das einzige was bei mir noch nicht funktioniert ist MFV Nachwahl.
So das man bsp.weise sein Mailbox abhören kann, und da ja eine Pin eingeben muss.
MFV ist nicht konfigurierbar. Lt. Admin-Guide (Download-site s.o.) ab S.31 werden 2 Verfahren unterstützt, die aushandelt werden
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Phone Features
DTMF
The phone provides 2 mechanisms for transmitting DTMF information,
inband and DTMF in RTP (see RFC 2833). The phone does not support outband
DTMF through SIP messaging. There are no configuration parameters
on the phone which control the use of DTMF.
A process of negotiation is used during call-setup to determine which form
of DTMF signaling will be used. The phone supports send DTMF information
in response to the user pressing the keys 0-9 and * and # when in a
call connected state.
When a call is made from a phone it will "Offer" the remote endpoint support
for DTMF in RTP (this is carried in the SDP protocol). If the far end
does not "answer" that it can support DTMF in RTP then DTMF in-band will
be used otherwise DTMF in RTP will be used.
When DTMF in RTP is negotiated the phone will always "offer" payload 100
to carry the DTMF events. The far end may accept and confirm this payload
or it may suggest a different payload value. In this case the phone will follow
that payload preferred by the far end. On an incoming call the phone
will follow the payload value suggested by the far end.
The phone is not capable of retrieving or understanding DTMF in-band or
DTMF in RTP information it may receive. This information is normally used
by application or media servers to control feature access. If the user presses
keys when in a call connected state and in-band DTMF has been negotiated
he will hear the tones being sent in the speech path (handset only).
If DTMF in RTP has been negotiated he will here clicks as speech packets
are removed and replaced with DTMF in RTP key events.
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Wenn es nicht geht, kann es swein, daß nur inband RTP ausgehandelt wird und diese Zeichen bei komprimierten Codecs (G.723.1A) nicht korrekt übertragen wird.
Stelle in unter Administration / speech folgendes ein:
Codec: G.729
Audio Mode: High Quality prefered
Silence supression : off
Damit ist sichergestellt, das vorzugsweise mit G.711 gearbeitet wird.
Wenn es immer noch nicht geht, hängt es am provider, dass der zu stark komprimiert. Ich hatte ein ähnliches Problem mit analoges Telefon an FRITZ!Box @ 1&1. Da ging DTMF Abfrage der Mailbox anfangs auch nicht, dann haben die was umgestellt.