2 x Networked IPECS a 100 and 50 1

[eats4treats]

Hi All

We have 2 Ipecs. The first being a 100 with PRIM 8 channels and the second being a 50a with no local lines. When they dial 9 they use the PRI and main site.

100 is on 5.6 and 50a is new and using 6.0 software. Routers and ADSL are soley for VOIP traffic.

Ok, you can transfer a call, make a call and recieve a call but as soon as you hang up and try again you get the line released message on the screen. Ch31-34 on main site and 5lch 5-8 on second site. This happens both ways. Its as if its not clearing the channel down and trying to reuse it but it still thinks its busy.

Im going to site tomorrow to upgrade the main IPECS100 site.

Any more hints, tips or resolvements would be appreciated.

Cheers

Eats.

Ok, Press Trans *#..... TRANS/PGM..... the transfer key?.......sigh!

 

[cody64]

Hi,

I would upgrade them to the latest version, not sure what you have available but there were issues with no speech on networked calls up until F.0 Di s/w.

The other thing that gave me grief recently was H323 ALG being on in the router. I could make a call then the next call would just sit there and eventually time out. A few minutes later it would work again.

Cheers

C64

 

[rsatech]

Hi Cody 64, how did you solve your problem with the H323 ALG being in your router. Did you simply disable the ALG in the router? I am experiencing the same problem.
Please reply

 

[cody64]

Hi,

Our tech support guys had seen the issue where the calls went nowhere. When I asked the customers IT support company, who had said the VPN was unrestricted, about alg there was silence then 'try that now'. They were running a Linux firewall at one end which had the alg on. What type of routers are you running?

C64

 

[Scobber]

Mikrotik routers, Essentially a linux based router use a H323 helper by default. The symptom of the H323 helper is that network calls take a few seconds to begin ringing at the other end, Also if you dial then hangup and dial again the system will time out with "Call Reject" on the screen.

turning the helper off fixes the problems. I believe their helper is designed to rewrite packets. ususally used to make a nat function correctly with the phones.