[OpenSIPS-Users] Question regarding b2b_bridge function
Ping Han
pinghan022 at gmail.com
Tue Jun 7 15:15:54 CEST 2016
Hi Bogdan,
Yes, that is exactly what I am trying to do.
Regards,
Ping
On Tue, Jun 7, 2016 at 8:34 PM, Bogdan-Andrei Iancu <bogdan at opensips.org>
wrote:
> Hi Ping,
>
> So you need the B2B Logic ID only when you create the B2B session, in
> order to place it in the first outgoing INVITE (as extra hdr), right ?
>
> Regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developerhttp://www.opensips-solutions.com
>
> On 07.06.2016 04:59, Ping Han wrote:
>
> Thanks, Bogdan,
>
> What I am trying to do is to get the b2b logic ID and deliver to the next
> hop via a custom SIP header.
>
> I am using the b2b_init_request("top hiding") and it looks like the only
> place that I can add a custom header is in the local_route.
>
> So in the script I need the b2b logic ID after running b2b_init_request("top
> hiding") but before the new INVITE is sent to the B party as shown below.
>
> I am not sure how I can do that.
> [image: Inline image 2]
>
> Thanks,
> Ping
>
> On Tue, Jun 7, 2016 at 12:07 AM, Bogdan-Andrei Iancu <
> <bogdan at opensips.org>bogdan at opensips.org> wrote:
>
>> 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 Developerhttp://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:: <http://sip:2401012350@10.216.235.38:5060>
>> 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>
>> 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= <http://sip:2401012350@10.203.1.196:22238>
>> 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= <http://sip:dialog@10.216.235.38:5060>
>> 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%3A123 at 10.203.1.196>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%3A123 at 10.203.1.196>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>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>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:alice 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>
>>>> 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/>
>>>>> 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
>>>>>
>>>>>
>>
>
>
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