[SR-Users] openser as SIP AS in IMS environment...

[Jeff Brower]

Daniel-

> On 4/30/10 10:08 PM, Jeff Brower wrote:
>> Daniel-
>>
>>
>>> On 4/30/10 8:24 PM, Iñaki Baz Castillo wrote:
>>>
>>>> 2010/4/30 Jignesh Gandhi<Jignesh.Gandhi at moviuscorp.com>:
>>>>
>>>>
>>>>> Hello All,
>>>>>
>>>>> Can openser be used as a SIP Application Server in an IMS infrastructure ?
>>>>>
>>>>> Should I use Kamailio instead ?
>>>>>
>>>>>
>>>> By definition a SIP proxy is not a "SIP Application Server"(which in
>>>> most cases are B2BUA's).
>>>>
>>>>
>>> Well, 'SIP proxy is not an SIP application server' is a bit forced. IMO,
>>> an application of SIP can be proxying SIP request, while most of the
>>> sites define couple of SIP server side entities like proxy, registrar,
>>> etc... these are just some types of applications for SIP.
>>>
>>> On the other hand, Kamailio is more than a proxy and it is in fact a
>>> real application server. It cannot be a VoIP application server,
>>>
>> It can be when combined with rtpproxy (and with accelerator PCI/PCIe card in some cases).
>>
>
> right, to some extent you can play with media in conjunction with
> rtpproxy -- iirc, you can do some audio playback with latest rtpproxy.
>
> What would be the accelerator used for?

High channel capacity... offload transcoding, encryption (SRTP), content recognition, etc. from rtpproxy+x86.

-Jeff

>>> since
>>> it does not do media processing, but can be a sip signaling application
>>> server and it is a lot you can do with signaling only (e.g., messaging,
>>> presence, custom communications and notifications).
>>>
>>>
>>>> However if you mean a "IMS SIP proxy/registrar" then OpenSer/Kamailio
>>>> could be valid (except for some custom requeriments of IMS). You can
>>>> take a look to OpenIMS which is OpenSer/Kamailio with some
>>>> "customization" or new modules designed for IMS.
>>>>
>>>>
>>> This is indeed an app to look at, site is http://www.openimscore.org.
>>> AFAIK, they updated their code and practically they run same core and
>>> common modules as kamailio/ser 3.0
>>>
>>> To give the proper answer to the question, then the kind of application
>>> wanted to be deployed must be described.
>>>
>>> And kamailio is just the new name of openser, since there were some
>>> trademark issues with openser word. The sourceforge devel project still
>>> keeps openser name. Last version released under openser name was 1.3.x,
>>> the first under kamailio name was the next one 1.4.0. Version 3.0.x is
>>> the last stable one, with lot of enhancements since last version with
>>> openser name was released, see here what are the major enhancements
>>> coming with every release:
>>> http://www.kamailio.org/dokuwiki/doku.php#features
>>>
>>
>
> --
> Daniel-Constantin Mierla
> * http://www.asipto.com/
> * http://twitter.com/miconda
> * http://www.linkedin.com/in/danielconstantinmierla
>
>