sipaccount_id (mandatory field)
username
password
register
ip_address
port
codec1,
codec2,
codec3,
codec4,
bypass_media --- [ "bypass_media", "bypass_media_after_bridge", "proxy_media" ]
sip_force_contact --- [ "NDLB-connectile-dysfunction" ]
sip_force_expires
callerid_name
callerid_number
pass_thru_callerid
voicemail
voicemail_password
cli_debug
enabled

curl -X POST \-H "Authorization: Token d37fa8c4e008fec158070b1b4aea5f0db3d6a06e" \
-H "Content-Type: application/json" \
-d '{ 
"sipaccount_id": 398948402432364,
"username": "herve333",
"password": "tomtom1234",
"caller_id_name": "Errol Samuels",
"caller_id_number": "19173001321",
"bypass_media": "bypass_media",
"codec3": "GSM"
 }' \
-k https://your.domain.com/api/users/update_sipaccount

{
  "status": "success",
  "results": {
    "username": "herve333",
	"client_account_code": "1828213528"
    "cli_debug": false,
    "custom_sip_headers": null,
    "voicemail_password": null,
    "voicemail": true,
    "register": false,
    "enabled": true,
    "port": 5060,
    "pass_thru_caller_id": false,
    "caller_id_name": "Errol Samuels",
    "sip_force_contact": "NDLB-connectile-dysfunction",
    "bypass_media": "bypass_media",
    "caller_id_number": "19173001321",
    "sip_force_expires": 360,
    "password": "tomtom1234",
    "ip_address": null,
    "id": 398948402432364,
    "codec4": null,
    "codec1": 2,
    "codec2": 3,
    "codec3": null,
  }
}