R0106-HP MSR Router Series Voice Configuration Guide(V7)

Tasks at a

lance

(Required.) Use one of the following methods to specify a call destination address for a VoIP entity:

• Configuring the call destination IP address for a VoIP entity

• Configuring a VoIP entity to obtain the call destination address from a proxy server

• Configuring the destination domain name and port number for a VoIP entity

(Optional.) Enabling keepalive function for a VoIP entity

(Optional.) Specifying a trusted node

(Optional.) Configuring extended SIP functions

• Configuring source interface binding for outgoing SIP messages or media packets

• Configuring out-of-band DTMF

• Configuring periodic refresh of SIP sessions

• Configuring PSTN cause-to-SIP status mappings

• Configuring caller privacy

• Setting the P-Asserted-Identity or P-Preferred-Identity header field

• Configuring reliable provisional responses

(Optional.) Configuring transport protocols for SIP calls

• Configuring UDP or TCP for outgoing SIP calls

• Enabling the UDP or TCP listening port

• Setting the aging time for TCP connections

(Optional.) Configuring SIP security

• Configuring TLS as the transport protocol

• Configuring SRTP for SIP calls

(Optional.) Specifying a URL scheme

• Specifying a global URL scheme for outgoing SIP calls

• Specifying a URL scheme for outgoing SIP calls on a VoIP entity

(Optional.) Setting the global DSCP value

Configuring SIP UA registration

A SIP UA registers with a SIP registrar as shown in Figure 33:

1. The SIP UA sends a REGISTER request to the registrar.

2. The registrar returns a 200 OK response to the UA if the registration is accepted.

Figure 33 Registration process

If the registrar needs to authenticate the UA, the UA registers with the registrar as shown in Figure 34:

IP network

Registrar

200 OK