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sobandrey
Beginner

Cisco SPA 502G not registered in 3750 VLAN

I have a two VLAN in CISCO 3750 VLAN 501, VLAN 502.

I have a hosted SIP-PBX in internet.

I have a NAT on two VLANS and one public white IP on cisco 1841 router.

501 - for PCs and not for VoIP. 192.168.0.1/255.255.255.128 with Windows 2008 DHCP.

502 - only for SIP VOIP phones 192.168.0.129/255.255.255.128 with cisco DHCP (including option 66, DNS, gateway, etc).

When i connect some SPA502G-7.4.9c to 501 VLAN SIP working fine, i can call, can recieve calls, make registration.

When i connect some SPA502G-7.4.9c to 502 VLAN SIP does't work on phone. Logs has thouse messages:

RSE_DEBUG: getting alternate from domain

[0]SIP:RegFailed;Retry in 30s

no response recieved.

When i connect notebook to VLAN 502 i have got internet, ping to sip host, can connect with softphone to PBX and make calls.

Routing, DNS, firewall rules are fine, i checked this 10000 ways.

Please, help me to troubleshouting this issue, i have no idea that is this?!!

1 REPLY 1
paolo bevilacqua
Hall of Fame Master

Wrong forum, try "small business -phones".