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All sorted now. Disabling SIP ALG did the trick for me. Many thanks for your help Experts. Much appreciated

thanks for your help guys. i have disabled the SIP ALG on dreytek router, reconfigured NAT and opened firewall ports. just want to restart exchange before i test it again. waiting for users to put the phones down :). will keep you guys posted and thanks again for all the help.

hi guys thanks for all the info. i had a quick chat with the sip service provide. he is saying that he is seeing the LAN ip address of the telephone exchange rather than the NATed address. telephone exchane is sitting behind the draytek router. In draytek router, i have created DMZ for the...

no its not sonic wall :) its a draytek router. I have configured the exchange ip address as a dmz host whcih in theory should forward all the traffic on that IP to telephone exchange. I am looking at ip office firewall. are there any changes i need to make on ip office firewall? please see the...

hi montyzummer thanks for the quick reponce. yes i have opened all the ports. thanks

hi all we are testing SIP lines on Avaya IP office 406 V2 software version 5(24) the call lands on telephone exchange but when answered, clients cant hear us and we cant hear them. i have opened all the firewall ports for exchange IP but still no luck. Any suggestions? Many Thanks

thanks tlpete. will try it now.

hi all we have installed avaya phone manager 4.0.18 on terminal server 2008R2 SP1. Its works for about half an hour to one hour without any problems but after thats its goes into not responding state. If i close the application and start again, it will work for another half an hour to hour and...

Thanks IPGuru.

thanks amriddle. Now I am well prepared to give BT hard time :)

Thanks for the reply amriddle. Is there any way I can prove this to BT.Our line provider is BT(using an ISDN 30 NTE52D box) Thanks

hi all we are using Avaya IP Office 406 V2 with a PRI 30 card . software version 5.0(24). From the last week calls are dropped in the middle and System status shows "trunk out of service". From the system status, I can see following Service Alarm: 8KHz clock source chaned. previous source was...

hi experts I am new in the network field. I am planning to do CCNA and CCNP to improve my skills and for better job prospects. Can you please recommned any good institute in London-UK for CCNA and CCNP certifications. Many Thanks Farhan

Thanks Westi what is the minumum PCS level required for IP Manager release 5.

hi all can avaya IP office Manager 5.0 be installed on IP 406V2 PCS12. what is minimum PCS level required for IP Manager 5.0 many thanks

hi all can avaya IP office Manager 5.0 be installed on IP 406V2 PCS12. what is minimum PCS level required for IP Manager 5.0 many thanks

All sorted Many Thanks guys

Hi bas1234 I have tried and I have partial success. it does dial the number but when I checked it in the CallStatus outgoing number was something like this 0128@draytek.comxxxxxxx looks like it is send the first 4 digits first then SIP Server address and then the remaining 7 digits. I have...

Hi all I have configured a new SIP line in IP Office 406(V2) with software version 4.1. Now I want all the outgoing call made through the SIP line. The Short code I used is Code: 0N; Feature: Dial Telephone Number: 0N"@draytel.org" Line Droup ID...

Thanks TomMills can't do this during the office. Will try this after office hours. One more thing, you have helped me before in sorting out IP office problems. As our support company for IP office is shit (still haven't came back to me with a solution nor any suggestions), is there a way we...