[OpenSIPS-Users] Question regarding b2b_bridge function
Bogdan-Andrei Iancu
bogdan at opensips.org
Mon Jun 6 16:07:29 CEST 2016
Hi Ping,
My bad - in Call-ID and TO tag you have the B2B _entity_ ID, while you
need the B2B _logic_ ID .....which is not part of the signaling at all .
Now, in script, where do you need the b2b logic ID ? after creating the
B2B session (after b2b_init() ) ? Or ?
Regards,
Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 06.06.2016 11:46, Ping Han wrote:
> 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
> <http://sip:2401012350@10.216.235.38:5060>
> callid:: NjEyZWEyOTEwZmVlZDIzOTViMTc3YjJiMmJmY2RjODI.
> from:: "Tropo test" uri=sip:2401012350 at 10.216.235.115:5060
> <http://sip:2401012350@10.216.235.115:5060> tag=1e53cf61
> to:: "2401012350" uri=sip:2401012350 at 10.216.235.115:5060
> <http://sip:2401012350@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
> <http://sip:2401012350@10.203.1.196:22238>
> callee=sip:10.216.235.72:5060 <http://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
> <http://sip:2401012350@10.216.235.115:5060>
> tag=44623c403b25fd7905bfa7a7325b2b8f
> to:: uri=sip:dialog at 10.216.235.38:5060
> <http://sip:dialog@10.216.235.38:5060> tag=40711690
> cseq:: caller=2 callee=1
> contact:: caller=sip:10.216.235.72:5060
> <http://10.216.235.72:5060> callee=sip:10.216.235.38:5060
> <http://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 <http://10.216.235.38:5060>
>
> [root at opensips-02 ~]# opensipsctl fifo b2b_bridge 237.6715348
> sip:123 at 10.203.1.196 <mailto:sip%3A123 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 <mailto:sip%3A123 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 <mailto:sip%3A123 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 <mailto: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 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: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 <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
>>>
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