Quote:
Originally Posted by gsmlover
...but still the same problem.
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Is your SPA2102 behind NAT or does it have a public IP address? Normally you don't need or want Voxalot NAT Handling because that add latency (it proxies all your RTP packets).
I suggest you try the following settings. If that doesn't solve the problem, send me your Voxalot number and I'll give you a test call and have a look at some SIP packets.
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If your SIP device is on a public IP address, set as follows:
(under SIP tab)
Handle_VIA_received: no
Handle_VIA_rport: no
Insert_VIA_received: yes
Insert_VIA_rport: yes
Substitute_VIA_Addr: no
Send_Resp_To_Src_Port: yes
STUN_Enable: no
STUN_Test_Enable: no
STUN_Server: (does not matter)
EXT_IP: (does not matter)
NAT_Keep_Alive_Intvl: (does not matter)
(under Line_1 and Line_2 (or PSTN_Line) tabs)
NAT_Mapping_Enable: no
NAT_Keep_Alive_Enable: no
NAT_Keep_Alive_Msg: (does not matter)
NAT_Keep_Alive_Dest: (does not matter)
Register Expires: 3600
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If your SIP device is behind one or more NAT routers, set the following:
(under SIP tab)
Handle_VIA_received: yes
Handle_VIA_rport: yes
Insert_VIA_received: yes
Insert_VIA_rport: yes
Substitute_VIA_Addr: yes
Send_Resp_To_Src_Port: yes
STUN_Enable: yes
STUN_Test_Enable: yes
STUN_Server: stun.voxalot.com.au:3478 (or any STUN server such as 'stun01.sipphone.com:3478' or 'stun.sipgate.net:10000')
NAT_Keep_Alive_Intvl: 179
(The NAT_Keep_Alive_Intvl value 179 was chosen to be less than the NAT session expiry time of most routers.)
(under Line_1 and Line_2 (or PSTN_Line) tabs)
NAT_Mapping_Enable: yes
NAT_Keep_Alive_Enable: yes
NAT_Keep_Alive_Msg: (this should be blank in order to send dummy packets)
NAT_Keep_Alive_Dest: $PROXY
Register Expires: 3600
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If you prefer not to use a STUN server then do the following:
1. Set STUN Enable: no
2. Forward the SIP ports and the RTP port range.
3. In order for the ATA/phone to know it's public IP address, make sure the ATA/phone is registered with at least one SIP registrar, or enter the public IP address into the appropriate setting in the ATA (in Linksys ATAs this setting is EXT_IP).