我在 Ubuntu 服务器上安装了星号，并且有以下 SIP 配置。sip 服务已启动并正在运行[general]context=default ; 来电的默认上下文

我在 Ubuntu 服务器上安装了星号，并且有以下 SIP 配置。SIP 服务已启动并正在运行

[general]
context=default         ; Default context for incoming calls
allowoverlap=no         ; Disable overlap dialing
udpbindaddr=0.0.0.0     ; Bind to all IP addresses
tcpbindaddr=0.0.0.0     ; Bind to all IP addresses (if using TCP)
tcpenable=no            ; Enable TCP if needed
srvlookup=yes           ; Enable DNS SRV lookups on outbound calls

[linphone]
type=friend
context=from-linphone    ; Context for incoming calls from Linphone
host=10.0.2.15           ; IP address is dynamic
secret=yourpassword      ; Password for this user
dtmfmode=rfc2833         ; DTMF mode
canreinvite=no           ; Disable direct media path
qualify=yes              ; Check the peer's status
nat=yes                  ; Handle NAT traversal
callgroup=1              ; Call group for grouping with other devices (optional)
pickupgroup=1            ; Pickup group (optional)
host=dynamic             ; Allows dynamic IP address assignment
disallow=all             ; Disallow all codecs initially
allow=ulaw               ; Allow ulaw codec
allow=alaw               ; Allow alaw codec

我尝试通过 Linphone 连接此 SIP 服务器。但是它不起作用。服务器和 Linphone 都在同一台 Ubuntu 机器上。