January 2017 - FreeSWITCH-users - FreeSWITCH Mailing Lists

How are you using FreeSWITCH?
by Ken Rice 06 Feb '17

06 Feb '17

Hey Guys, A lot of you are using FreeSWITCH for some fairly complex things. However that is not always clear to people discovering FreeSWITCH for the first time. I would like to build a list of examples. If you don't mind this info being compiled on Confluence. Please Reply with who, what, and where so we can document it and show off some of the really cool FreeSWITCH based or FreeSWITCH using deployments out there. Thanks Ken

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No input audio with FSClient
by Paul Mateer 02 Feb '17

02 Feb '17

I seem to have a problem with audio input when using FSClient. I have one box running FreeSWITCH and another running FSClient. I can call the server no problem and get audio back (I dialled 9198 to get the Tetris tune) but when I provide an audio stream using the mic and dial 9196 I get nothing back. I know the mic is providing sound and the FreeSWITCH server is operating OK because I can use X-Lite to perform the same test and I get the audio feed played back to me. I'm not sure if there is something amiss in the configuration of FSClient (although it should be the default config) or if something else is amiss (there doesn't appear to be anything odd in the FreeSWITCH log for the client). Does anyone have any thoughts on what might be wrong, or what i should look at? Thanks, Paul Sent from my Windows 10 phone

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We're looking for a few good FreeSWITCHers
by Brian West 02 Feb '17

02 Feb '17

Contact me! I want your credentials and details for an interview! I don't care who, what, where or how! Have credentialed, know what's up?!?!? Know FreeSWITCH? You've got my attention, send your CV to consulting(a)freeswitch.org Here is your chance to shine! Thanks, /b

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Sequence numbers are created on outgoing call leg without taking into account lost sequence number on incoming call leg
by Dmitriy Ageev 01 Feb '17

01 Feb '17

Hello, It would be much appreciated to have some advice on following use case. We establish a call on a Freeswitch by creating two call legs separately and then bridged them together: Client <--Call Leg A--> Freeswtich <--Call Leg B--> Gstreamer During a call there are packet losses on Call Leg A between Client and Freeswitch and we have appropriate notifications in a Freeswitch debug logs. As well as it's clear from the pcap logs taken from a Freeswitch that RTP packets are missing with certain sequence number. Since Client and Gstreamer using same Opus codec Freeswitch just sends packets straightly with same payload and timestamp to Gstreamer. The only thing is changed in RTP packets are SSRC and Sequence Numbers. In a case when RTP packet is lost sequence numbers are not preserved between Call Leg A and Call Leg B. So Call Leg B just got packets which are make it up to Freeswitch. That means that Call Leg B gets for all received on a Freeswitch RTP packets consecutive sequence numbers (unfortunately lost packets are not count) and so Gstreamer is not aware of the packet loss which took precedence on a previous Call Leg A. Due to this since all RTP packets are consecutive on Call Leg B Gstreamer have no notion of a lost packet. So it is not starting a procedure of Forward Error Correction (FEC) on a lost packet and eventually we got audio drops which are not handled. As well as Freeswitch is not decoding payload so it doesn't do FEC on Opus side. That's why we are wondering what could be a solution for that? From first glance into RTP RFC it seems ok to have such behavior, i.e. not take into account previous sequence numbers for a packet loss. But maybe it's just not considering such cases. Is there other RFCs which cover such situations? We thinking maybe it make sense to have a patch to FS so that we would receive if not the same but at least have the same gaps in the sequence numbers as on Call Leg A? Or maybe some other solution to that problem which is available on a Freeswitch? If you need us to share any FS logs will be happy to provide. I'll attach pcap logs for the time being. 188.130.168.205 - Client 10.240.0.12 - Freeswitch 10.240.0.7 - Gstreamer Please take a look at following filter. Where 24632 is missing packet on Call leg A: rtp.seq== 24631 || rtp.seq== 24632 || rtp.seq== 24633 || rtp.seq == 56583 || rtp.seq == 56582 ___________ Best Regards, Dmitriy Ageev

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Need help for smpp_send command
by Uday kumar 01 Feb '17

01 Feb '17

Hi All, I am using SMPP on freeswitch 1.6.6. OS CentOS 7.2. When I am using softphone to send message on any mobile number using SMPP then its working but when I am using *smpp_send gateway|destination|source|message * then in source and destination going null.Below is logs. 2017-01-30 07:36:52.472935 [INFO] mod_smpp_message.c:113 Creating message from event: Event-Name: [MESSAGE] Core-UUID: [2f544720-e6e6-11e6-a29c-e5cd0c776bd1] FreeSWITCH-Hostname: [Server] FreeSWITCH-Switchname: [Server] FreeSWITCH-IPv4: [204.10.94.4] FreeSWITCH-IPv6: [::1] Event-Date-Local: [2017-01-30 07:36:52] Event-Date-GMT: [Mon, 30 Jan 2017 12:36:52 GMT] Event-Date-Timestamp: [1485779812472935] Event-Calling-File: [mod_smpp.c] Event-Calling-Function: [mod_smpp_send_api] Event-Calling-Line-Number: [137] Event-Sequence: [776] destination_addr: [12127773456] source_addr: [19377579349] Content-Length: 12 Test Message 2017-01-30 07:36:52.472935 [INFO] mod_smpp_message.c:114 2017-01-30 07:36:52.492858 [INFO] mod_smpp_utils.c:41 PDU command_length [0000003C] - [60] command_id [00000004] - [SUBMIT_SM] command_status [00000000] - [ESME_ROK] sequence_number [00000006] - [6] service_type [SMS] source_addr_ton [01] - [TON_International] source_addr_npi [01] - [NPI_ISDN_E163_E164] source_addr [(null)] dest_addr_ton [01] - [TON_International] dest_addr_npi [01] - [NPI_ISDN_E163_E164] destination_addr [(null)] esm_class [01] - [1] protocol_id [00] - [0] priority_flag [00] - [0] schedule_delivery_time [] validity_period [] registered_delivery [00] - [0] replace_if_present_flag [00] - [0] data_coding [00] - [0] sm_default_msg_id [00] - [0] sm_length [0C] - [12] short_message [Test Message] Please help. -- Thanks & Regard Uday Site:- www.shareyourknowledge.in Mobile:- +91-9377579349

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Recording session as ogg format
by Hamit Türkü Kaya 01 Feb '17

01 Feb '17

Hi, i want to record sessions as .ogg file with record_session command. I installed libsndfile and it’s dependencies also i activated mod_sndfile in freeswitch. Now i am able to record it with .oga extension but i can’t record as ogg. When i try it i get; [ERR] switch_core_file.c:150 Invalid file format [ogg] for file. error. As i know, both of them uses vorbis codecs. Why system doesn’t recognise ogg. Is there licence problem or something else? Regards. — Hamit Türkü KAYA, Geliştirici BULUTFON AŞ | www.bulutfon.com | 0 (850) 885 0000

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Notify Packets
by Jai Rangi 31 Jan '17

31 Jan '17

Why would freeswitch send notify even if send-message-query-on-register is set to false. If that any other setting that might cause FS to send notify. Have a issue with one of the clients, where FS sends 1000's of notify packets and client does not respond and does not send 200 OK. May be due to client's firewall dropped the port mapping rule. This results in 1000's of incomplete SIP connections on the firewall. So we dont want to send notify at all? How can I achieve that. Thank you,

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Using session.getVariable with start_stamp, answer_stamp and nibble_total_billed return empty
by Donny Hardyanto 31 Jan '17

31 Jan '17

Hi, I need to call some web API after the call finish with parameter answered time stamp and nibble_total_billed. I am using Javascript session.getVariable to get those parameters, but the start_stamp, answer_stamp, start_epoch and nibble_total_billed returned empty. How to get the start_stamp, answer_stamp and nibble_total_billed in Javascript scripts? Donny

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Sofia - Recover. List of tables required to be replicated accross 2 DBs
by Naveen Khanna 31 Jan '17

31 Jan '17

Dear All, I have been successfully using Sofia Recover using shared postgres database. However, I have come across a requirement where, I will have to use 2 separate database instance for 2 freeswitch boxes I was looking for list of tables so that I can configure postgres for replication across 2 server (I do not want to replicate the entire DB). The objective is to recover Sip Registrations & Current Calls. Regards, Naveen Khanna

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reinvite ignored when right after bridge completes
by Rafael Kaihatu 30 Jan '17

30 Jan '17

Hi, I am getting a re-invite message right after a bridge is setup in my FS. when re-invite arrives before bridge event, it seems FS ignores it. does anyone hit this issue before ? how did you fix it? FS 1.4.20 more details about call flow: 1) leg1 invite 2) bridge leg2 invite is sent 3) leg2 200 OK 4) leg2 ACK 5) leg1 200 OK (it seems that this is triggered by bridge cmd completion) 6) leg1 ACK So far, it is good. then 7) leg1 re-invite. sometime FS drops this msg. After (6), I can see in the logs that FS sends 2 events ANSWERED_EVENT (leg1) and CHANNELS_BRIDGED_EVENT (leg1) I observed that if (7) happens before FS sends the CHANNELS_BRIDGED_EVENT, then re-invite is dropped. I also observed that the following log entries are not printed when failure occurs ========= nua.c:633 nua_invite() nua: nua_invite: entering nua_stack.c:529 nua_signal() nua(0x7f73140019d0): sent signal r_invite 2017-01-30 21:14:10.906746 [DEBUG] switch_core_session.c:912 Send signal sofia/sip-ua/5555000@XXXXXX.net:5085 [BREAK] nua_stack.c:569 nua_stack_signal() nua(0x7f73140019d0): recv signal r_invite nua_params.c:480 nua_stack_set_params() nua: nua_stack_set_params: entering soa.c:403 soa_set_params() soa_set_params(static::0x7f72f34307f0, ...) called soa.c:1052 soa_set_user_sdp() soa_set_user_sdp(static::0x7f72f34307f0, (nil), 0x7f7314005167, -1) called soa.c:1302 soa_init_offer_answer() soa_init_offer_answer(static::0x7f72f34307f0) called soa.c:1426 soa_generate_offer() soa_generate_offer(static::0x7f72f34307f0, 0) called soa_static.c:1146 offer_answer_step() soa_static_offer_answer_action(0x7f72f34307f0, soa_generate_offer): called soa_static.c:1215 offer_answer_step() soa_static(0x7f72f34307f0, soa_generate_offer): upgrade with local description soa_static.c:1029 soa_sdp_mode_set() soa_sdp_mode_set(0x7f7399457940, (nil), ""): called soa.c:1270 soa_get_local_sdp() soa_get_local_sdp(static::0x7f72f34307f0, [(nil)], [0x7f7399457aa0], [0x7f7399457aac]) called nta.c:2665 nta_tpn_by_url() nta: selecting scheme sip tport.c:4588 tport_by_name() tport(0x7f73740067b0): found 0x7f72f028e130 by name tls/10.191.209.144:5085 tport.c:3257 tport_tsend() tport_tsend(0x7f72f028e130) tpn = tls/ 10.191.209.144:5085 tport_type_tls.c:534 tport_tls_send() tport_tls_writevec: vec 0x7f72f028ed30 0x7f72f34579b0 958 (958) tport_type_tls.c:534 tport_tls_send() tport_tls_writevec: vec 0x7f72f028ed30 0x7f72f345c880 315 (315) tport_type_tls.c:534 tport_tls_send() tport_tls_writevec: vec 0x7f72f028ed30 0x7f72f344cfa0 132 (132) tport.c:3594 tport_vsend() tport_vsend(0x7f72f028e130): 1405 bytes of 1405 to tls/10.191.209.144:5085 tport.c:3492 tport_send_msg() tport_vsend returned 1405 ========= I see this instead ========= nua.c:633 nua_invite() nua: nua_invite: entering nua_stack.c:529 nua_signal() nua(0x7f7314011980): sent signal r_invite 2017-01-30 21:14:43.406714 [DEBUG] switch_core_session.c:912 Send signal sofia/sip-ua/5555000@XXXXXXXXXX.net:5085 [BREAK] nua_stack.c:569 nua_stack_signal() nua(0x7f7314011980): recv signal r_invite tport.c:2773 tport_wakeup() tport_wakeup(0x7f72f028e130): events IN tport.c:2864 tport_recv_event() tport_recv_event(0x7f72f028e130) tport_type_tls.c:434 tport_tls_recv() tport_tls_recv(0x7f72f028e130): tls_read() returned 93 tport.c:3205 tport_recv_iovec() tport_recv_iovec(0x7f72f028e130) msg 0x7f72f3457f50 from (tls/10.191.209.144:5085) has 93 bytes, veclen = 1 tport.c:2296 tport_set_secondary_timer() tport(0x7f72f028e130): reset timer tport.c:2773 tport_wakeup() tport_wakeup(0x7f72f028e130): events IN tport.c:2864 tport_recv_event() tport_recv_event(0x7f72f028e130) tport_type_tls.c:434 tport_tls_recv() tport_tls_recv(0x7f72f028e130): tls_read() returned 729 tport.c:3205 tport_recv_iovec() tport_recv_iovec(0x7f72f028e130) msg 0x7f72f3457f50 from (tls/10.191.209.144:5085) has 729 bytes, veclen = 1 tport.c:2296 tport_set_secondary_timer() tport(0x7f72f028e130): reset timer tport.c:2773 tport_wakeup() tport_wakeup(0x7f72f028e130): events IN tport.c:2864 tport_recv_event() tport_recv_event(0x7f72f028e130) tport_type_tls.c:434 tport_tls_recv() tport_tls_recv(0x7f72f028e130): tls_read() returned 175 tport.c:3205 tport_recv_iovec() tport_recv_iovec(0x7f72f028e130) msg 0x7f72f3457f50 from (tls/10.191.209.144:5085) has 175 bytes, veclen = 1 ========= Thanks in advance Rafael

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