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Can't Get Zyxel 2002L working SIP - SIP VOIP trial , PSTN ok

scottiedog
Dabbler
Posts: 14
Registered: 01-12-2007

Can't Get Zyxel 2002L working SIP - SIP VOIP trial , PSTN ok

I Use a Zyxel 2002L and my dad uses a Zyxel 2002L
I can make Outgoing calls dialing PSTN and Mobile ok
My dad can make outgoing calls PSTN and mobile ok
I can receive incoming calls to my new geographic local number ok from External PSTN or Mobile
My dad can receive incoming calls ok from external PSTN or mobile to his geographical local number.
When we try SIP to SIP, this is where problems occur:
I dial my Dads SIP number or his Geographical number his phone rings and he answers but he has very bad echo on line my end is ok.
If he calls me by dialing my SIP number or geographical local number, my phone rings, when I answer it there is silence but he still gets ringing tone at his end, so my lifting the handset is not tripping the ringing.
Settings are:
SIP Settings
    Active SIP - ticked   
    SIP Number - xxxxxxx
    SIP Local Port    - 5060
    SIP Server Address - sip2.plus.net   
    SIP Server Port - 5060
    REGISTER Server Address- sip2.plus.net   
    REGISTER Server Port- 5060
    SIP Service Domain   - sip2.plus.net
Authentication
    User-ID  - xxxxxxx
    Password - ******
Advanced Settings
URL TYPE - SIP
Expiration Duration - 3600
Register Re-send timer - 180
Session Expires - 180
Min -SE - 30
RTP Port Range
From - 50000
To     - 65535
Voice Compression Type - G.711 > G.729
STUN
Not Active
Use NAT
Not Active
Outbound Proxy
Active ticked
Server Address - nat.plus.net
server port - 5082
NAT Keep Alive
Not Active
We both use Linksys WAG200G Routers for the Broadband connection.
would be grateful for any advise or help
Thanks
Scott
5 REPLIES
fotobits
Rising Star
Posts: 584
Fixes: 1
Registered: 23-06-2007

Re: Can't Get Zyxel 2002L working SIP - SIP VOIP trial , PSTN ok

I use a P-2002L, however, I have been unable to check with SIP-to-SIP connections.
My current settings differ with yours, as follows :-
Expiration Duration...reduced to...900secs.  Not yet tested.  I hope to improve quality of some calls out, these  are in the minority.
Outbound Proxy...Not active.
DTMF Mode...RFC 2833
Volume Controls...Speaking and Listening... -1.  I experienced distortion with higher levels.
Echo Cancellation...G.168...Active
VAD Support...Active.
I would like to test my SIP-to-SIP connection, are you willing to ring my number and vice versa?  If so, let's exchange numbers on the private e-mail.
Regards....Noel
fotobits
Rising Star
Posts: 584
Fixes: 1
Registered: 23-06-2007

Re: Can't Get Zyxel 2002L working SIP - SIP VOIP trial , PSTN ok

I should add, scottiedog, my Outbound Proxy is not active because my router, also Zyxel, has a SIP Application Layer Gateway, ALG.
The P-2002L manual states that you do not need to use Outbound Proxy and STUN if the adapter is behind an ALG.
Regards....Noel
scottiedog
Dabbler
Posts: 14
Registered: 01-12-2007

Re: Can't Get Zyxel 2002L working SIP - SIP VOIP trial , PSTN ok

After a couple of minor tweaks and test calls with Noel and my Dad, all working fine so far.
Scott
simonsse
Dabbler
Posts: 10
Registered: 27-12-2007

Re: Can't Get Zyxel 2002L working SIP - SIP VOIP trial , PSTN ok

What were the minor tweaks?  Anything that anyone else might find useful?
SimonSSE
scottiedog
Dabbler
Posts: 14
Registered: 01-12-2007

Re: Can't Get Zyxel 2002L working SIP - SIP VOIP trial , PSTN ok

Tweaks were :
VAD Support...Active.
NAT Keep Alive
Active
I am not at home at the moment so will post my complete settings tomorrow or when I wake up after the new year
Smiley