[OpenSIPS-Users] Question regarding b2b_bridge function
Ping Han
pinghan022 at gmail.com
Mon Jun 6 10:46:40 CEST 2016
Thanks, Bogdan,
I have done a few testing. It seems only the value of the param works for
this function. However, it does not look like the callid and the to-tag.
Is it possible to get the param value in the Opensips config?
Please see the test results below.
---------------------------------
[root at opensips-02 ~]# opensipsctl fifo b2be_list
dlg:: 37 param=237.0 state=5 last_invite_cseq=1 last_method=0
last_reply_code=200 db_flag=2
ruri:: sip:2401012350 at 10.216.235.38:5060
callid:: NjEyZWEyOTEwZmVlZDIzOTViMTc3YjJiMmJmY2RjODI.
from:: "Tropo test" uri=sip:2401012350 at 10.216.235.115:5060
tag=1e53cf61
to:: "2401012350" uri=sip:2401012350 at 10.216.235.115:5060 tag=
B2B.297.37
cseq:: caller=1 callee=1
route_set::
caller=<sip:10.216.235.72;lr;ftag=1e53cf61>,<sip:10.216.235.115;lr;ftag=1e53cf61>
contact:: caller=sip:2401012350 at 10.203.1.196:22238 callee=sip:
10.216.235.72:5060
send_sock:: 10.216.235.72
dlg:: 6715348 param=237.0 state=5 last_invite_cseq=2 last_method=4 db_flag=2
callid:: B2B.237.6715348
from:: "Tropo test" uri=sip:2401012350 at 10.216.235.115:5060
tag=44623c403b25fd7905bfa7a7325b2b8f
to:: uri=sip:dialog at 10.216.235.38:5060 tag=40711690
cseq:: caller=2 callee=1
contact:: caller=sip:10.216.235.72:5060 callee=sip:
10.216.235.38:5060
send_sock:: 10.216.235.72
LEGS::
leg:: 0 tag=40711690 cseq=2 contact=sip:10.216.235.38:5060
[root at opensips-02 ~]# opensipsctl fifo b2b_bridge 237.6715348
sip:123 at 10.203.1.196 (this is the callid with out the "B2B" prefix)
500 command 'b2b_bridge' failed
[root at opensips-02 ~]# opensipsctl fifo b2b_bridge 297.37
sip:123 at 10.203.1.196 (this is the To-tag)
500 command 'b2b_bridge' failed
[root at opensips-02 ~]# opensipsctl fifo b2b_bridge 237.0 sip:123 at 10.203.1.196
(this is the value of param, only this works)
---------------------------------
Regards,
Ping
On Fri, Jun 3, 2016 at 6:54 PM, Bogdan-Andrei Iancu <bogdan at opensips.org>
wrote:
> 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 Developerhttp://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%3Aalice at opensips.org>
> sip:alice 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>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 Developerhttp://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>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 Developerhttp://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>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>
>>>> 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 Developerhttp://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>
>>>> 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>
>>>>> 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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