Port Overview | Firewall Configuration

+ Cloud and Self Hosted

Here you will find an overview of the necessary port clearances in your firewall.

Configure your firewall

Many companies have no restricted Internet access and can therefore use the pascom server immediately, without any adjustment to the firewall.

However, if you specify exactly which Internet services your company network may access, please activate the following ports in your firewall to allow smooth operation of the pascom phone system

Port Overview Cloud

Port Function Device Source Target
5061/TCP SIP-Connection Your Network pascom.cloud*
30.000-35.000/UDP RTP-Voice Your Network pascom.cloud*
636/TCP LDAPS, Phonebook Your Network pascom.cloud*
8884/TCP Phone Provisioning Your Network pascom.cloud*
80 / 443/TCP Updates, Push, Fax, Voicemail, Recordings Your Network mypascom.net
3478 Video-Functionality/UDP Your Network pascom.cloud*
5222/TCP Chat, Filetransfer Your Network pascom.cloud*
19302/UDP+TCP WebRTC - WebClient Your Network pascom.cloud*
8885/TCP VPN Tunnel to PBX Your Network pascom.cloud*


Legend

= pascom Server
= Desktop Client
= Mobile Client
= IP-Phone
= WebClient

| * = The pascom.cloud can target different IP addresses

Port Overview Onsite

Port Function Device Source Target
80 / 443/TCP Licenseserver Your Network mypascom.net
25/TCP Access to pascom Mailserver Your Network cloudmx1.pascom.net, cloudmx2.pascom.net
123/TCP Access to TimeServer (NTP) Your Network ntp.pool.org


To access your devices via the Internet in your network to the pascom telephone system, you need the same port clearances as for the cloud variant. (or also with subnets)

Port Function Device Target
5061/TCP SIP-Connection Your Network
30.000-35.000/UDP RTP-Voice Your Network
636/TCP LDAPS, Phonebook Your Network
8884/TCP Phone Provisioning Your Network
80 / 443/TCP Updates, Push, Fax, Voicemail, Recordings mypascom.net
3478/UDP Video-Functionality Your Network
5222/TCP Chat, Filetransfer Your Network
19302/UDP+TCP WebRTC - WebClient Your Network
8885/TCP VPN Tunnel to PBX Your Network


Legend

= pascom Server
= Desktop Client
= Mobile Client
= IP-Phone
= WebClient

| * = The pascom.cloud can target different IP addresses