SIP Network Configuration

SIP Signaling Addresses

AIVO Connect uses these SIP signaling endpoints. Each region has a primary and secondary IP for redundancy.

Use sip.aivo.bz as your default. Use the regional endpoints if you need traffic to stay in a specific region.

Note: SIP regions affect only the signaling path. Media anchoring is configured separately in your connection settings.

Outbound calls from the same IP or SIP username are limited to 50 calls per 3 seconds.

Inbound Calls

Register your SIP device on any region listed above. Inbound calls arrive from the regional SIP proxy. If you use an ACL or firewall, whitelist both the primary and secondary IPs.

DNS Records

All SIP FQDNs support A, SRV, and NAPTR DNS record types.

For DNS-based SIP routing, configure SRV records:

_sip._udp.yourdomain.com  86400  IN  SRV  10  10  5060  sip.aivo.bz
_sip._tcp.yourdomain.com  86400  IN  SRV  10  10  5060  sip.aivo.bz
_sips._tcp.yourdomain.com 86400  IN  SRV  10  10  5061  sip.aivo.bz

Your PBX queries the SRV record and routes SIP traffic to the correct endpoint.

Transport Protocols

Media (RTP)

RTP port range: 16384 to 32768 (UDP).

Firewall Whitelist Subnets

Whitelist the following CIDR ranges for RTP media traffic:

36.255.198.128/25
50.114.136.128/25
50.114.144.0/21
64.16.226.0/24
64.16.227.0/24
64.16.228.0/24
64.16.229.0/24
64.16.230.0/24
64.16.248.0/24
64.16.249.0/24
103.115.244.128/25
185.246.41.128/25

Note: For the current, up-to-date list, go to AIVO Connect > Network Info in your dashboard or visit aivo.bz/sip-info. IP ranges may be updated periodically.

Codecs

Supported codecs:

• G.722
• G.711U (PCMU)
• G.711A (PCMA)
• G.729
• Opus — Supported for inbound and outbound. Inbound requires TLS or TCP transport.
• H.264

We support ptime:20 for RTP.

Firewall Configuration

Recommended Firewall Rules

1. Allow outbound SIP:

• Protocol: UDP + TCP
• Destination: sip.aivo.bz (and regional endpoints)
• Port: 5060 (or 5061 for TLS)

1. Allow outbound RTP:

• Protocol: UDP
• Destination: AIVO media subnets (see list above)
• Port: 16384-32768

1. Allow return traffic (if not using stateful firewall):

• Protocol: UDP + TCP
• Source: AIVO signaling and media IPs
• Port: 5060 + 16384-32768

Disable SIP ALG

SIP ALG (Application Layer Gateway) is a feature on many consumer and small-business routers that modifies SIP packets. It almost always causes problems:

• Registration failures
• One-way audio
• Dropped calls
• Random disconnections

Disable SIP ALG in your router settings. The exact location varies by router brand:

• Netgear: Advanced > WAN Setup > Disable SIP ALG
• Linksys: Administration > Management > Disable SIP ALG
• Ubiquiti/UniFi: Settings > Threat Management > Disable SIP ALG

QoS (Quality of Service)

For best call quality, prioritize SIP and RTP traffic:

• Mark SIP packets as DSCP CS3 (or EF).
• Mark RTP packets as DSCP EF (Expedited Forwarding).
• Configure your router to prioritize these markings.

Quick Start

1. Log in to your AIVO Connect dashboard
2. Create a SIP Connection (credential, IP, or FQDN auth)
3. Create an Outbound Voice Profile
4. Purchase or port phone numbers
5. Configure your PBX with sip.aivo.bz