grokit  Freshman Member

Thanks @Zyxel_Charlie I got it running in the meantime, but with different setup. It seems to be a bit unstable, though. I will try your solution as well. I hope it's better :-) Dan 

Hello @Zyxel_Charlie Thanks for your reply. 1. The 4.20 readme states the following and we actually took this into account: "Recommended upgrade to ZLD4.13 patch2 C0 or later version first before upgrade to ZLD4.20". This is slightly different from what you propose. I will send you the config files in a private message. 2.…

hello @TAPTech thanks for sharing. please keep us up to date. Stanley is a good guy. he has given me quite some good information, although I was not yet able to test all of his hints. dan

Merci Reto, No Worries.. Thanks anyway. grüessli Daniel

hi @Zyxel_Stanley Yes, this is exactly the same setup I have. All options and serttings identical. All traces look the same in my case. But only with FW 4.25. As soon as I install FW 4.30, 4.31 or 430AAPJ0ITS-WK10-r82493, I would not see the SIP Option packets on the LAN side anymore. Or to be more precise, I would see a…

hello christian, I was not referring to you when I mentioned "so-called VOIP specialists". I appologize if that is what you thought. fact is that most people with VOIP background have, what I call the traditional use case or model only in their mindset: * PBX on local LAN * IP phones on same local LAN * PBX only connecting…

Hello Reto, I am stuck on 4.25 for the time being.430AAPJ0ITS-WK10-r82493 did not fix it and 4.31 did not either. Testing is time intensive. After boting with a newer firmware, I always check the changes to the configuration first (just doing a diff between the config files works for me). I carefully make sure that there…

@Gary_fromDenver, yes .. just look here: https://businessforum.zyxel.com/discussion/1093/4-30-sip-alg-issues

@Zyxel_Charlie Ah, the keyword was "partition". I was not aware that the two partitions have in addition to the firmware, also their own set of configuration files. That explains a lot. Good to know. Thanks for pointing this out. I therefore concur that the issues I have seen with the different configurations between the…

Hello @Zyxel_Charlie, you've got mail.

Hello @Zyxel_Charlie, I already have access to that firmware, thanks. What I miss is some kind of readme.txt or release notes. I was told that "a similar issue to what I described seems to be fixed" by the country distributor over here. While this makles me almost happy, I do not like to install new firmware without any…

Just learned that this "seems" to be a bug which has been fixed in 430AAPJ0ITS-WK10-r82493. However, I was not able to get my hands on a Readme or Release Note of that WK version. Does anymoe know where I can find a description of the fixed issues? Daniel

@ChristianG, my scenario differs a great deal from a local pbx. With a local pbx, the firewall has ever only to manage one SIP connection to the provider. In such cases, one can completely disregard SIP ALG and purely work with UDP Session Timers, or even NAT rules and port forwarding. The latter only works with one SIP…