SIP daemon for Lantiq devices with owsip

The aim of this project is to provide a working SIP daemon for Lantiq SoCs with MIPS CPU.

owsip utilizes available FXS hardware ports for making calls.

fails to work on units with more than 32MiB RAM
only the primary voice channel works
handling for incoming calls, while making calls does not exist
missing answering machine
missing fax
missing srtp/ssl login
missing kpi - kernel acceleration

Once owsip is only and registered you can start to make and answer calls. SIP can dial landline and sip numbers. Currently a number dialed on a key pad is interpreted as a landline. If you want to call a sip account, you need to add a contact entry for this. To dial a contact, simply press the “*” key followed by the “code” sequence. Note that owsip can do keypad letter → number conversion (for example → 3926753).

The “#” key is also mapped to handle dial backends, however “contact” is the only backend we currently have. it is mapped to “#1code”.

Name	Type	Required	Default	Description
`name`	string	yes	owsip	the daemon announces this name
`backend`	string	yes	ltq_tapi	tell the daemon which backend to use
`log_level`	int	yes	3	verbosity
`interface`	string	yes	nas0	bound to this interface, if unsure use nas0
`local_port`	int	yes	5060	define port for SIP
`rtp_port`	int	yes	4000	define port for RTP
`outbound`	string	no	(none)	outbound proxy server, define like <sip:192.168.1.1:9060;lr;transport=udp>
`cid`	string	no	(none)	enable support for CID. Possible valued: telecordia, etsi_fsk, etsi_dtmf, sin, ntt, kpn_dtmf and kpn_dtmf_fsk
`locale`	string	no	(none)	currently supporting only germany and croatia
`revert`	int	no	0	switch FXS port0 ↔ port1 (work around 2nd port not working)

This section describes our STUN server.

Name	Type	Required	Default	Description
`host`	string	no	(none)	STUN host
`port`	int	no	(none)	STUN port

This section describes our SIP credentials/server.

Name	Type	Required	Default	Description
`realm`	string	yes	(none)	SIP realm to connect to
`username`	string	yes	(none)	SIP username
`password`	string	yes	(none)	SIP password
`disabled`	string	no	0	by default accounts are enabled
`port`	int	yes	-1	bind account to a specific port
`default`	int	no	0	use account as default one

This section describes a physical FXS port.

Name	Type	Required	Default	Description
`id`	int	yes	0	the physical port described by the section
`noring`	int	no	0	if set to 1 the phone will never ring
`nodial`	int	no	0	if set to 1 then port may not dial numbers
`led`	string	no	(none)	set to sysfs path of the led matching the port

This section describes a contact for short dial.

Name	Type	Required	Default	Description
`desc`	string	yes	(none)	the name of the contact
`code`	string	yes	(none)	the short dial code to match (0-9a-zA-Z)
`dial`	string	yes	(none)	the actual number to dial
`type`	string	yes	(none)	sip/realm
`account`	string	no	(none)	the account to use when making the call

This section describes a relay on the pcb that activates the fxs port

Name	Type	Required	Default	Description
`gpio`	int	yes	(none)	gpio to use
`value`	int	yes	(none)	value to set gpio to

The owsip configuration file is located at /etc/conf/telephony. This is the default configuration:

config general
        option 'name'           'owsip'
        option 'backend'        'ltq_tapi'
        option 'ossdev'         0
        option 'log_level'      3
        option 'interface'      'nas0'
        option 'local_port'     5060
        option 'rtp_port'       4000
        option 'locale'         'germany'
        option 'revert'         0

config account 'fxs1'
        option 'realm'          'myrealm1.com'
        option 'username'       'myuser1'
        option 'password'       'mypass1'
        option 'disabled'       1

config account 'fxs2'
        option 'realm'          'myrealm2.com'
        option 'username'       'myuser2'
        option 'password'       'mypass2'
        option 'disabled'       1

config stun
        option 'host'           'stun.myrealm.com'
        option 'port'           '3478'

config 'relay' 'relay_31'
        option 'gpio'           '31'
        option 'value'          '1'

config 'port' 'port0'
        option 'id'             '0'
        option 'led'            'soc:green:fxs1'
        option 'noring'         '0'
        option 'nodial'         '0'

config 'contact'
        option 'desc'           'example contact description'
        option 'code'           'example'
        option 'dial'           '0123456789'
        option 'type'           'realm'

SIP daemon for Lantiq devices with owsip

Known Problems / missing features

Using owsip

Common Options

STUN Section

Account Section

Port Section

Contact Section

Relay Section

Configuration