[OpenSIPS-Users] Question regarding b2b_bridge function
Bogdan-Andrei Iancu
bogdan at opensips.org
Fri Jun 3 10:54:33 CEST 2016
Hi Ping,
b2b_bridge_request() is a script function:
http://www.opensips.org/html/docs/modules/2.1.x/b2b_logic.html#id294094
I pointed to this function as you mentioned (on my question) that you
want to do the bridging from script level.
Indeed, the equivalent MI function is b2b_bridge:
http://www.opensips.org/html/docs/modules/2.1.x/b2b_logic.html#id294210
If you want to get that "1020.30", you can get it from Call-ID or To
tag, where you have B2B.1020.30 (so you have to strip that B2B prefix).
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 03.06.2016 06:27, Ping Han wrote:
> Thanks, Bogdan,
>
> It seems the function you mentioned is the internal function "1.4.2
> b2b_bridge_request(b2bl_key,entity_no)".
>
> Actually the function that I am trying to use is the "b2b_bridge"
> (Exported MI Functions). It is defined as below
> ----------------------------------
> http://www.opensips.org/html/docs/modules/2.1.x/b2b_logic.html#id294210
>
>
> 1.5.2. b2b_bridge
>
> Example: opensipsctl b2b_bridge 1020.30 sip:alice at opensips.org
> <mailto:sip%3Aalice at opensips.org>
> ----------------------------------
>
> In the example "1020.30" is the "dialog-id". This is the parameter
> that I am not sure how to easily access in the Opensips config.
>
> What I am trying to do is to get the value and deliver to the next hop
> via a custom SIP header. When the next hop tries to transfer the call
> to a new destination. It can run the b2b_bridge command straight away
> with the "dialog-id" without rechieving the value from the Opensips
> database (from b2b_logic or b2b_entities tables).
>
> Any advice will be appreciated.
>
> Thanks,
> Ping
>
>
> On Thu, Jun 2, 2016 at 5:35 PM, Bogdan-Andrei Iancu
> <bogdan at opensips.org <mailto:bogdan at opensips.org>> wrote:
>
> Hi Ping,
>
> In script, in a b2b route, you can look at the callid or TO tag
> (depending on the direction) to get the key :
> http://www.opensips.org/html/docs/modules/2.2.x/b2b_logic.html#id294094
>
> The B2B uses that key as Call-ID when acting as UAC and as To tag
> when acting as UAS. You can run a SIP capture to see the traffic.
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com
>
> On 02.06.2016 05:13, Ping Han wrote:
>> Hi Bogdan,
>>
>> Thanks for the information.
>>
>> I need the value in the Opensips cfg.
>>
>> I understand that I can query the b2b_logic or b2b_entities
>> tables to get the value in Opensips config. Apart from that could
>> you tell me other way to easily access the value in Opensips config?
>>
>> Thanks,
>> Ping
>>
>>
>>
>> On Wed, Jun 1, 2016 at 5:13 PM, Bogdan-Andrei Iancu
>> <bogdan at opensips.org <mailto:bogdan at opensips.org>> wrote:
>>
>> Hi Ping,
>>
>> Indeed, my bad - the docs are not updated, as that param was
>> disabled long time ago (4 years ago):
>> https://sourceforge.net/p/opensips/bugs/502/
>>
>> Still, there are available option. But the question is : do
>> you need that value in OpenSIPS cfg or outside OpenSIPS ? as
>> there are different way to get the ID.
>>
>> Regards,
>>
>> Bogdan-Andrei Iancu
>> OpenSIPS Founder and Developer
>> http://www.opensips-solutions.com
>>
>> On 01.06.2016 03:48, Ping Han wrote:
>>> Hi Bogdan,
>>>
>>> Thank you very much for your reply.
>>>
>>> I have tried to use the module parameter "b2bl_key_avp" as
>>> described in the document as below.
>>>
>>> ------------------------------------
>>> modparam("b2b_logic", "b2bl_key_avp", "$avp(99)")
>>> ------------------------------------
>>>
>>> However, I got the following errors when the Opensips is
>>> restarted.
>>> ------------------------------------
>>> ERROR:core:set_mod_param_regex: parameter <b2bl_key_avp> not
>>> found in module <b2b_logic>
>>> ------------------------------------
>>>
>>> I am using the Opensips version opensips-2.1.2-1.el6.x86_64
>>> (rpm).
>>>
>>> Thanks,
>>> Chris
>>>
>>> On Tue, May 31, 2016 at 6:01 PM, Bogdan-Andrei Iancu
>>> <bogdan at opensips.org <mailto:bogdan at opensips.org>> wrote:
>>>
>>> Hi Chris,
>>>
>>> The "dialog_id" is actually the b2b key, that is expose
>>> by the b2b_logic via the module parameter b2bl_key_avp. See:
>>> http://www.opensips.org/html/docs/modules/2.1.x/b2b_logic.html#id294094
>>>
>>> That key can also be found in the b2b_logic table in DB.
>>>
>>> At signaling level, the key is the Call-ID of the
>>> outbound calls from b2b.
>>>
>>> Regards,
>>>
>>> Bogdan-Andrei Iancu
>>> OpenSIPS Founder and Developer
>>> http://www.opensips-solutions.com
>>>
>>> On 23.05.2016 07:32, Ping Han wrote:
>>>> Hi Bogdan,
>>>>
>>>> I asked the question a few days ago but have not got a
>>>> response.
>>>>
>>>> I am just wondering if I could get some advice from you.
>>>>
>>>> Any advice will be appreciated.
>>>>
>>>> Thanks,
>>>> Chris
>>>>
>>>> On Wed, May 18, 2016 at 4:39 PM, Ping Han
>>>> <pinghan022 at gmail.com <mailto:pinghan022 at gmail.com>> wrote:
>>>>
>>>> Hi,
>>>>
>>>> I would like to use the b2b_bridge fifo function as
>>>> specified at
>>>> http://www.opensips.org/html/docs/modules/2.1.x/b2b_logic.html#id248916.
>>>>
>>>> The function will be triggered by a third party. I
>>>> will need to pass the parameters to the third party
>>>> for it to trigger the function. One of the
>>>> parameters is the "dialog-id".
>>>>
>>>> The problem is that I am not sure how the value of
>>>> the dialog-id can be available in the Opensips
>>>> config. Is there any Opensips modules/function that
>>>> can retrieve the value of the dialog-id?
>>>>
>>>> I tried to get the value from the "b2b_entities"
>>>> and "b2b_logic" table. However, it seems that it
>>>> does not work this way because the two tables do
>>>> not pop the data in real time. Sometimes I can see
>>>> the data but sometimes I am not able to see it.
>>>>
>>>> It is appreciated that you can give me some idea.
>>>>
>>>> Thanks,
>>>>
>>>> Ping
>>>>
>>>>
>>>
>>>
>>
>>
>
>
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