IMAP4 extensions for Visual Voicemail (VVM)

[Stephan Bosch]

Op 15-11-2019 om 16:15 schreef Harald Leithner via dovecot:
> If you use an Iphone (and your mobile proivder supports it) then you are
> using it ;-)
>
> just my 2 cents

https://source.android.com/devices/tech/config/voicemail

Android apparently supports it as well.

Regards,

Stephan.

>
> Am 21.10.2019 um 12:26 schrieb Stephan Bosch via dovecot:
>>
>> Op 20-10-2019 om 22:33 schreef Jean-Daniel via dovecot:
>>>
>>>> Le 20 oct. 2019 à 22:24, Mauricio Tavares via dovecot
>>>> <dovecot at dovecot.org <mailto:dovecot at dovecot.org>> a écrit :
>>>>
>>>> On Sun, Oct 20, 2019 at 10:43 AM Rajesh Bansal via dovecot
>>>> <dovecot at dovecot.org <mailto:dovecot at dovecot.org>> wrote:
>>>>> Hi Team,
>>>>>
>>>>>
>>>>>
>>>>> I need to develop Visual VoiceMail solution. In this solution I need
>>>>> a IMAP4 server, from which I can get a hit for each mail retrieval.
>>>>> Can anyone help me if dovecot can be used for this purpose.
>>>>>
>>>>       That is rather vague. Do you want to do something like ol' biff
>>>> or what we used to do with Asterix 10 years ago (get an email with the
>>>> voicemail as as attachment)?
>>> I guess he is talking about that:
>>> https://www.gsma.com/newsroom/wp-content/uploads/2012/07/OMTP_VVM_Specification_1_3.pdf
>>>
>> I skimmed through this. It adds quite a few strange custom bits to the
>> IMAP protocol. Part of this are a few new commands and METADATA items,
>> which should be quite easy to implement. However, the amendments also
>> include various attachment-based QUOTA limits. Dovecot doesn't support
>> this and adding that is not trivial.
>>
>> Also, this specification is quite old and outdated (it even mentions an
>> MD5 authentication mechanism). Is this even actively used anywhere?
>>
>> Regards,
>>
>> Stephan.
>>