Aastra Telecom 57I CT, 55I, 53I manual Sip transport protocol Transport Protocol

IP Phone Administrator Guide

Operational, Basic, and Advanced Parameters

Appendix A

Parameter –

sip transport protocol

Transport Protocol

(in Web UI)

Description

Format

Default Value

Range

Example

Aastra Web UI Advanced Settings->Global SIP-> Advanced SIP Settings

Configuration Files aastra.cfg, <mac>.cfg

The protocol that the Real-Time Transport Protocol (RTP) port on the IP phone uses to send out SIP signaling packets.

Notes:

1.If you set the value of this parameter to 4 (TLS), the phone checks to see if the “sips persistent tls” is enabled. If it is enabled, the phone uses Persistent TLS on the connection. If “sips persistent tls” is disabled, then the phone uses TLS on the connection. If TLS is used, you must specify the Root and Intermediate Certificates, the Local Certificate, the Private Key, and the Trusted Certificates.

2.If the phone uses Persistent TLS, you MUST specify the Trusted Certificates; the Root and Intermediate Certificates, the Local Certificate, and the Private Key are optional.

For more information about Persistent TLS, see “Transport Layer Security (TLS) Settings” on page A-72.

Integer

1 - UDP

Valid values are:

0 - User Datagram Protocol (UDP) and Transmission Control Protocol (TCP)

1 - UDP

2 - TCP

4 - Transport Layer Security (TLS)

sip transport protocol: 4

A-66 41-001160-00, Release 2.1, Rev 04