How to configure SIP trunks on two U1911s for interconnection

Run the config cdsp rfc2833 switch on command in config mode to enable RFC 2833.

A maximum of 255 trunks can be configured for the U1910, U1911, U1930, U1960, and U1980 separately. A maximum of 1024 trunks can be configured for the U1981.

On one U1900, one prefix may conflict with another conflict. However, the same prefix can be configured on different U1900s without causing prefix conflict.

1. Log in to the web management page of the U1900, choose User > SIP User and click Create to add required SIP numbers. 2. Adding SIP numbers by running commands Note: To ensure your information security, select an authentication mode (authentication based on the IP address, password, or both IP address and password) when adding SIP numbers. A. Add 32 SIP users in batches. Add 32 SIP user devices in batches. Set the start device ID to 7000 and the authentication mode to password-based authentication. config add batch sipue seid 7000 authorizationtype authbyeid password 123456 number 32 Allocate user numbers (starting from 7000 to 7031) to 32 SIP devices (with the device ID ranging from 7000 to 7031) in batches. config add subscriber eid 7000 dn 7000 number 32 B. Add a SIP user. config add sipue eid 7096 authorizationtype authbyeid password 123456 config add subscriber eid 7096 dn 7096 Parameter description: seid: Start device ID. eid: Device ID. authorizationtype: Authentication mode used by the U1900 to authenticate a SIP device when the SIP device attempts to register with the U1900. The options are as follows: -noauth: No authentication -authbyip: IP-based authentication -authbyeid: Password-based authentication -authbyeidandip: IP- and password-based authentication dn: Start user number number: User quantity

Two methods are available: 1. Using the web: Log in to the web management system of the U1911, choose User Management > SIP User, and add required SIP numbers. 2. Using commands: Note: To ensure security, select an authentication mode (by IP address, by password, or by IP address and password) when adding SIP numbers. (1) Add SIP users in batches. For example, add 32 SIP devices with the start device ID being 7000 and use password-based authentication. config add batch sipue seid 7000 authorizationtype authbyeid password 123456 number 32 Allocate user numbers 7000?7031 for the 32 SIP devices in batches. config add subscriber eid 7000 dn 7000 number 32 (2) Add a single SIP user. config add sipue eid 7096 authorizationtype authbyeid password 123456 config add subscriber eid 7096 dn 7096 Parameter description: seid: start device ID. eid: device ID. authorizationtype: authentication mode used by the U1900 to authenticate a SIP device when the SIP device attempts to register with the U1900. Four options are available: noauth (not authenticated), authbyip (authentication by IP address), authbyeid (authentication by password), and authbyeidandip (authentication by password and IP address). dn: start user number. number: number of users.