User guide

VoIP SIP VoIP SIP Embedded Proxy Server
iMG/RG Software Reference Manual (Voice Service)
6-24
6.2.3 VoIP SIP Embedded Proxy Server
All gateway models with the exception of RG600E and RG6x6E variants include support for the embedded SIP
proxy server. See table 1 (RG/iMG Models) for further details.
Refer to section 6.2.7 for the Embedded Proxy Server (EPS) CLI commands.
Also, note the following rules and guidelines for SIP:
• The maximum number of sip fdb users is 128, except for the iMG616E (64).
• The media port limit depends on the cpu type, and so the following number of ports are available:
• iMG616E (Helium-210) - up to 48
• iMG634A/B, iMG634WA/B, iBG910A/B (Argon-4x2) - up to 48
• iBG915FX, iMG6x6MOD, iMG7x6MOD (Helium-520) - up to 128
• iMG634A/B-R2, iMG634WA/B-R2, iMG616W (Solos) - up to 128
The default value is always 32.
Note: Do not use the SECURITY ADD ALG command with the SIP option when configuring EPS, as this will
cause issues with managing NAT sessions.
Note: When configuring EPS, note that EPS allows a maximum of three calls per line, although some IP-
phones can support more than three.
6.2.4 VoIP SIP command reference
This section describes the commands available on the iMG to configure and manage the SIP protocol-signalling
module.
6.2.4.1 VoIP SIP protocol CLI commands
The table below lists the VOIP SIP protocol commands provided by the CLI: