UCoIP DNS/firewall configuration

DNS configuration

In order to get the full UCoIP concept working at LAN/Internet it's necessary to configure some DNS records at internal and external DNS servers of the company domain.

Next is given an example for the public DNS zone configuration. In that example lets suppose that:

DNS domain: domain.com
IPBrick FQDN: voip.domain.com
Public IP associated to IPBrick: 88.88.88.88
User UCoIP page to create: jsmith.domain.com 

So in this case we need to configure the following DNS records:

A records:

voip           A     88.88.88.88
webrtc         A     88.88.88.88
webrtcproxy    A     88.88.88.88

CNAME records:

im                 CNAME   voip
jwchat             CNAME   voip
webphone           CNAME   voip
groupware	   CNAME   voip
cafe               CNAME   voip
jsmith             CNAME   voip

SRV records for VoIP (SIP):

_sips._tcp.domain.com.     IN     SRV   1   0   5061   voip.domain.com.
_sip._tcp.domain.com.      IN     SRV   1   0   5060   voip.domain.com.
_sip._udp.domain.com.      IN     SRV   1   0   5060   voip.domain.com.

SRV records for chat (Jabber/XMPP):

_jabber._tcp.domain.com. 86400      IN SRV 5 0 5269 voip.domain.com.
_xmpp-server._tcp.domain.com. 86400 IN SRV 5 0 5269 voip.domain.com.
_xmpp-client._tcp.domain.com. 86400 IN SRV 5 0 5222 voip.domain.com.

If IPBrick will be the email server, we need to modify/add the MX record:

domain.com         MX       5     voip.domain.com

Firewall/Router configuration

If the eth1 IPBrick is behind a NAT at Router/Firewall, its necessary to forward the following traffic to eth1 IP:

HTTP     - 80 TCP
HTTPS    - 443 TCP
SMTP     - 25 TCP
SIP      - 5060 UDP/TCP
SIPS     - 5061 TCP
RTP      - 40000:45000 UDP
RTP      - 50000:55000 UDP
RTP      - 60000:65000 UDP
XMPP     - 5222 TCP
XMPP     - 5269 TCP
XMPPS    - 5223 TCP
WebRTC   - 8888 TCP
Webphone - 10060 UDP/TCP
Webphone - 10062 TCP