Open Source Sip: OSBC not working without depending on ...

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5 Replies Last post: Jan 28, 2010 7:42 PM by joegen

xbipin

5 posts since
Oct 18, 2009

Oct 18, 2009 12:08 PM

OSBC not working without depending on VIA headers

i tried OSBC with the latest code in upper registration to voipswitch as well as yate and it just wont work because it totally depends on via headers it sends to the switch and on return tries to get the client from the via headers so if the switch strips it off then upper registration doesnt work but outgoing calls work without registration so basically u cant expect incoming calls.

mayb just to make OSBC perform better and keep its load at the least it simply does the routing. There r so many switches out there do a lot of stuff that violates RFC but its designed so that it can do NAT transversal much better or for some other reason to be more compatible with so many othr switches. What i think is if reply to source ip and port were to be implemented then it could solve this via header issue.

there r some other post also a while ago that ppl have reported that OSBC binds to the private ip of the client instead of sending reply to its public ip and port.

joegen

469 posts since
Apr 28, 2007

1. Jan 13, 2010 8:56 PM

in response to: xbipin

Re: OSBC not working without depending on VIA headers

For whatever it is worth at this point, I found time to fix this interop issue with older versions of voipswitch. Try the latest CVS.

xbipin

5 posts since
Oct 18, 2009

2. Jan 14, 2010 3:40 AM

in response to: joegen

Re: OSBC not working without depending on VIA headers

ok thanks, now atleast OSBC registers the phone to voipswitch but some other issues have popped up

1- the phone is set to refresh register every 60secs but the OSBC doesnt seem to do the same to the voipswitch server so after expiration period in voipswitch, registered clients stops showing the phone, other devices connected to voipswitch directly seem to work fine and their devices keep showing as registered untill they r disconnected.

2- OSBC tries to route inbound calls from voipswitch to phone but isnt able to reach it so no incoming ring on the phone

3- in stateful upper registration, OSBC doesnt register phone to server but phne gets registered to OSBC

xbipin

5 posts since
Oct 18, 2009

3. Jan 22, 2010 5:15 AM

in response to: joegen

Re: OSBC not working without depending on VIA headers

i tried with the latest code from CSV and like i said, one issue remains in upper reg mode, the grandstream phone sends register to OSBC which sends it to voipswitch and everything works fne and phone gets registered and everything working but now in voipswitch the register expiration is set to 60secs and in the phone also i set it to 60secs, now as soon as 60 secs r over, the phone sends the register again to OSBC but SBC doesnt seem to send the register to voipswitch for the second time to refresh it so voipswitch expires the first register but the phone still gets registered from OSBC some how so phone remains registered and keeps doing that every 60secs but i guess the communication between voipswitch and OSBC has some issues.

to confirm it i tried registering the phone to voipswitch directly and works fine in plain SIP mode and also tried with other linksys phones with and without OSBC in between. If OSBC is sued in between using plain SIP then also it works fine but only when using CBCOM this issue of voipswitch no re registering occurs so the CBCOM module needs to be looked upon.

tested scenarios:
phone ---> voipswitch (works fine)
phone ---> OSBC ---> voipswitch (in plain SIP works fine)
phone ---> OSBC ---> voipswitch (in CBCOM doesnt reregister after initial register but phone and OSBC shows registered but not voipswitch)

joegen

469 posts since
Apr 28, 2007

4. Jan 27, 2010 8:17 PM

in response to: xbipin

Re: OSBC not working without depending on VIA headers

Hi Bipin,

Thanks for the bug report. I will look into it when I get the time.

Joegen

joegen

469 posts since
Apr 28, 2007

5. Jan 28, 2010 7:42 PM

in response to: joegen

Re: OSBC not working without depending on VIA headers

Hi Bipin,

I will be able to find time to look at this issue next week. Before then, can you please send me a level 5 log of a sample REGISTER request that is OKayed but not forwarded by OpenSBC?

Joegen

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