Wellgate 26xx Series User Manual Download Page 6

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26xx Technical Manual EN-V106d

G.711 pass-through

T.38 Fax relay protocol

Tone Generation & Detection

Ringing Tone

Ring Back Tone

Dial Tone

Programming Tone

Call Features

Call Hold

Call Transfer (Blind & consultant)

Call Forward (Unconditional / No Answer / Busy)

MWI – Message Waiting Indication

PSTN Routing Prefix (2644 only)

PSTN Bypass when network or system failure (2644 only)

IP line hunting

Adjustable volume level

Security

HTTP 1.1 basic/digest authentication for WEB access

MD5 for SIP authentication (RFC 2069/2617)

Password protected Admin access authority

1.5 Setting and maintenance

Configure & Update method

Web Browser (HTTP)

Telnet

FTP/TFTP

Setting parameter Import /Export

Voice announcement of IP address

Syslog Client – Debug & CDR (Call Detail Record)

1.6 Environmental

Dimension: 35

242

160 mm (Desktop)

Weight: 0.935kg (unit)

Operating Temp. & Humidity

Temp.: 0

℃～

℃

(32

℉～

113

℉

)

Humidity: 10

％～

85% relative humidity, non-condensing

Summary of Contents for 26xx Series

Page 1: ...nual Revision Information Version Date Description 106d Oct 12 2009 4nd English Version 1 Introduction 3 1 1 26xx Telephony Gateway 3 1 2 Benefits 3 1 3 Physical Interface 3 1 4 Specification 4 1 5 Setting and maintenance 5 1 6 Environmental 5 ...

Page 2: ...1 SIP Setting 20 3 3 3 SIP Advanced Setting 23 3 3 4 Payload Type Setting 26 3 3 5 Line Setting 27 3 3 6 Qos Setting 30 3 3 7 Speed Dial Setting 31 3 3 8 Caller ID Setting 32 3 3 9 CDR Setting 34 3 3 10 Syslog Setting 35 3 4 Advanced Configuration 37 3 4 1 System setting 37 3 4 2 SNTP Setting 41 3 4 3 Codec Setting 42 3 4 4 Voice Setting 44 3 4 5 Tone Setting 46 3 4 6 Phone Setting 48 3 4 7 Digit ...

Page 3: ...26xx Technical Manual EN V106d 2 3 5 6 Network Status 60 3 5 7 Version Info 61 3 5 8 Port Status 62 3 5 8 Password 63 3 6 Rebooting the system 64 Appendix A How to set the P2P call 65 ...

Page 4: ...nterprises Carrier grade features are supported and tested to be fully interoperable with leading Soft Switches Provide CDR for call shop application Superb device for apartment VoIP service 1 3 Physical Interface Ethernet port RJ 45 10 100 base T 1 WAN port for connect to router ADSL modem ATU R or switch hub directly 4 LAN port for PC or other network devices connecting Telephony port RJ 11 depe...

Page 5: ...2 RFC 3261 Session Timer RFC 4028 Privacy Mechanism RFC 3323 Outbound proxy setting for increasing performance productivity and security SIP proxy redundancy Support Primary and Secondary proxy Voice Codecs G 711 a Law u Law 64k bits PCM G 723 1 6 3k 5 3k bits G 729A 8k bits CS SCELP VAD Voice Activity Detection with Silence Suppression CNG Comfortable Noise Generation Echo Cancellation G 165 G 16...

Page 6: ...ailure 2644 only IP line hunting Adjustable volume level Security HTTP 1 1 basic digest authentication for WEB access MD5 for SIP authentication RFC 2069 2617 Password protected Admin access authority 1 5 Setting and maintenance Configure Update method Web Browser HTTP Telnet FTP TFTP Setting parameter Import Export Voice announcement of IP address Syslog Client Debug CDR Call Detail Record 1 6 En...

Page 7: ... 2608 Wellgate 2680 Wellgate 2644 LED Description Power When the power adapter is connected the LED will light up green Ready When system is startup successfully the LED will light up green Proxy When the gateway is registered successfully to a Proxy this will light up green WAN This will light up green when the gateway s WAN port is physically connected to the public internet When data is transmi...

Page 8: ...handset is lifted or when the connected phone is engaged in a conversation It will flash amber orange when there is an incoming call L1 L8 The status LED for FXO port 1 8 When there is no PSTN connected this LED will become blinking when PSTN is connected and no talking the LED will be off When a line is using the LED will become light up 2 2 Rear Panel LED Indicators Wellgate 2608 Wellgate 2680 W...

Page 9: ...erent is that the when power off or application is crashed the FXO and FXS will be connected together automatically for local surviving LAN 1 4 10 100 Base T RJ 45 socket for LAN port 1 4 connects to local area network WAN 10 100 Base T RJ 45 socket for WAN port connects to wide area network DC 12V The power socket input AC 100V 120V output DC12V 3A ...

Page 10: ...e IP address from Wellgate 26xx you can start the configuration as below 3 1 Configuration Login to the WELLGATE 26XX web configuration menu 1 Open your WEB browser and key in the default IP address of the gateway http 192 168 123 123 in the Address box see figure below 3 You will see a pop up window requesting username and password before you can login to the web configuration menu Username is ro...

Page 11: ...26xx Technical Manual EN V106d 10 2 You will enter the main page of the web configuration interface after you keyed in the username and password correctly see figure below ...

Page 12: ...s for setting up the WAN port of the 26xx There are in total three methods of connections Static IP DHCP and PPPoE Note You can retrieve the IP address of the WAN port by keying 126 on the phone set that is connected to the FXS port of the gateway You will hear an IVR announcing the current IP address of the WAN port ...

Page 13: ...26xx Technical Manual EN V106d 12 3 2 1 WAN Setting The table shown below describes the configuration items for 3 connection types of network Static IP DHCP and PPPoE ...

Page 14: ...e the DNS information sent from the DHCP server Manual will look at the specified Primary and Secondary DNS address V V V Primary DNS address Specify the address of the Primary DNS V V V Secondary DNS address Specify the address of the Secondary DNS V V V WAN Link Speed Select the connection speed for the WAN port of the 26xx you can choose the following Auto 100M 10M V V V HTTP port for WEB manag...

Page 15: ...ou can Enable Disable this option V V V PPPoE userID Specify the username of the PPPoE account V PPPoE password Specify the password associated to the PPPoE account above V Reboot after remote host disconnection When the remote host PPPoE fails the gateway will retry 3 times to reconnect if there is no reply from the remote host within 3 tries then the gateway will reboot You can Enable Disable th...

Page 16: ...ss the Reboot button to apply the changes 3 2 1 2 WAN Setting DHCP 1 Press the Apply button at the bottom after you finish to save changes 2 Press the Reboot button to apply the changes P S When you are using DHCP in WAN and not connected please make sure you connect Ethernet before use PC to connect to LAN port ...

Page 17: ...etting PPPoE 1 Input PPPoE user ID and password 2 Press the Apply button at the bottom after you finish to save changes 3 Press the CANCEL button next to the Apply button to clear the values in the page 4 Press the Reboot button to apply the changes ...

Page 18: ...ver Enable Disable DHCP function on the LAN port Once enabled the LAN ports will function as a DHCP server network devices connected to them will be issued with IP addresses IP address from When DHCP is enabled you can specify the IP address to start from when assigning to attach network devices IP address to When DHCP is enabled you can specify the ending IP address assigned to the attached netwo...

Page 19: ... time of the IP address allocated to the DHCP client DNS server mode Select the DNS behavior you can choose the following Auto Manual DNS auto will retrieve the DNS information sent from the DHCP server Manual will look at the specified Primary and Secondary DNS address Primary DNS address Specify the address of the Primary DNS Secondary DNS address Specify the address of the Secondary DNS 1 Press...

Page 20: ...ter connection in between PSTN and traditional PABX The call scenario will be working as below 1 For FXO incoming call it will route to corresponding FXS directly 1 by 1 2 For FXS outgoing call it will route to VOIP except those prefix set in FXO dialing Prefix 3 For VOIP incoming call it will route to FXS based on the called number 4 When VOIP call is failed to be called out such as register fail...

Page 21: ...e refer to 3 3 2 1 Primary FXS SIP settings When you have multiple SIP accounts for each FXS line please set Representative Number Only to No Then refer to 3 3 2 1 for the detail FXS SIP Setting FXS line SIP account settings Hunting Select the group of representative number and specify the priority Only the checked line will become the member of the representative number The default setting L1 L2 ...

Page 22: ...xy Specify the data of Outbound proxy for secondary proxy Enable Disable IP address and Port Representative Number The representative number is working as a SIP trunk for the selected FXS line for all FXS or FXO FXS combination model or FXO line for all FXO model When an incoming call to the representative number the selected FXS or FXO port will be hunted Enable Enable the Line the default settin...

Page 23: ...he Ring Time for Serial ring Status Displays the registration status whether it is registered or not Hunting Select the group of representative number and specify the priority Only the checked line will become the member of the representative number The default setting L1 L2 is grouped 1 Enter the IP address and port number of the SIP proxy into the Primary proxy address and Port fields Press the ...

Page 24: ...rt Each account s interval is 2 For example the local SIP port is set to 5060 The following is the port number to be used for 26xx Port 1 5060 Port 2 5062 Port 3 5064 Port 4 5066 Port 5 5068 Port 6 5070 Port 7 5072 Port 8 5074 Representative Number 5076 Local RTP port 1 65535 Specify the local starting RTP port number ...

Page 25: ... Client UAS Server This will add the parameter refresher uac or uas in the Session Refresh Request message Unregister All Send SIP unregister signaling message after the 26xx has been restarted Early media Treatment Use early media treatment SIP protocol where SIP invite messages will not include SDP Support SIP Ping Special feature used with only Nortel s SIP proxy IP Anonymous Caller ID When thi...

Page 26: ...response Max Response Time for Invite 1 30sec Specify the timeout period for SIP Invite messages For example if the timeout period is 10 seconds when the 26xx sends an Invite message and does not receive a response within 10 seconds it will cancel the call SIP RTP Encrypt This function can encrypt the SIP and RTP message but only supports Wellgate sever proxy 1 Press the Apply button at the bottom...

Page 27: ...bypass payload type Specify the FAX payload type range is 96 128 however 100 102 105 is reserved by other payload types Modem by pass payload type Specify the Modem by pass payload type range is 96 128 default value is 103 100 102 104 105 is reserved by other payload types 1 Press the Apply button at the bottom after you finish to save changes 2 Press the Reboot button to apply the changes ...

Page 28: ...26xx Technical Manual EN V106d 27 3 3 5 Line Setting ...

Page 29: ... default setting is 30 sec FAX Enable Disable FAX T 38 function Line1 Line8 relevant data Type Displays the port type of that particular line Enable Enable the line or not Reg Register or Unregister to SIP Proxy Number Displays the line numbers that specified in SIP Setting Account Input the SIP Proxy registration account ID Number Input the phone number Password Input the password of IP ...

Page 30: ...t to hotline the default value is 0 Forward Type FXS only Specify the forwarding type to use you can choose the following Disable Unconditional Busy No Answer Busy and No Answer The Disable option will allow you to disable this particular function Forward Number Specify the number to forward the call to when the call forwarding feature is enabled Call Waiting FXS only Enable Disable per line Call ...

Page 31: ...ur network environment DSCP Signal Select the DSCP value for SIP message the value in the drop down list is expressed in binary format you can choose to meet your network environment ToS Setting ToS RTP Select the ToS value for RTP voice packets the value in the drop down list is expressed in binary format you can choose to meet your network environment ToS Signal Select the ToS value for SIP mess...

Page 32: ...nt 1 Press the Apply button at the bottom after you finish to save changes 2 Press the Reboot button to apply the changes 3 3 7 Speed Dial Setting Speed Dial Editor Specify the speed Dial Number Telephone Number Name then press the Add or Del button to add or delete record ...

Page 33: ...er ID generation type to use you can choose the following Disable DTMF FSK Bellcore ETSI Before Ring ETSI Between ring FXO only choose Enable Disable the caller ID detection AUTO You can choose different caller ID type by line If Line1 Line 8 uses the same type you only need to set line 1 and click the Auto button then ...

Page 34: ...able this particular function DTMF Caller ID Start Symbol Specify the DTMF Caller ID Start Symbol The default symbol is D DTMF Caller ID End Symbol Specify the DTMF Caller ID End Symbol The default symbol is C 1 Press the Apply button at the bottom after you finish to save changes 2 Press the Reboot button to apply the changes ...

Page 35: ...Enable the CDR mode please specify the IP address of CDR Sever for data storage CDR Server port Specify the CDR Server port number The default port number is 514 1 Press the Apply button at the bottom after you finish to save changes 2 Press the Reboot button to apply the changes P S To receive the SYSLOG CDR you need to have a syslogd server to collect the CDR from Wellgate 26xx The following is ...

Page 36: ...26xx Technical Manual EN V106d 35 enable syslog server from settings before you can use it 3 3 10 Syslog Setting This syslog is used to send the debug log from Wellgate 26xx to syslog server ...

Page 37: ...ress of Syslog Sever for data storage Syslog Server port Specify the Syslog Server port number The default port number is 514 1 Press the Apply button at the bottom after you finish to save changes 2 Press the Reboot button to apply the changes P S To receive the SYSLOG debug information you need to have a syslogd server to collect the debug information from Wellgate 26xx The following is a tool y...

Page 38: ...iver Off Hook ROH Tone A ROH tone is sent to the subscriber to inform him that his receiver is off hook You can Enable Disable this option Send billing signal FXS only Enable Polarity Reversal for FXS as billing signal or not When a FXS calls to VOIP and answered by the VOIP 26xx will generate reverse signal to FXS as billing start When VOIP side disconnect first 26xx will reverse back as billing ...

Page 39: ... Flash key function FXS only Select the function of Flash key you can choose the following Disable Transfer SIP Message Keypad DTMF type Select the type of Keypad DTMF you can choose the following In Band RFC2833 SIP Info End of dial key Select the End of dial key you can choose the following Disable DTMF Detection Sensitivity Specify the grade of DTMF Detection Sensitivity the value range is 1 5 ...

Page 40: ...ment of IP address of LAN port or press 126 to get WAN port IP address FXO please following under step 1 You can get a PSTN line and connect to the L1 FXO port 2 Use another PSTN phone to dial the PSTN number in step 1you connected on FXO 08 you will hear a second dial tone or greeting please dial extension number 3 Press 126 on the phone set and you will hear an IVR announcing the current IP addr...

Page 41: ...going call Loop Current Drop Use line current drop as the disconnect signal or not Both Enable polarity reversal and current drop simultaneously Disconnect Singal Generation Disable Polarity Reversal Enabling polarity reversal 26xx will reverse the line polarity when VOIP side is disconnected Loop Current Drop This feature is used when the 26xx FXS are connected with answering machines When the re...

Page 42: ...e SNTP server address for time synchronization Time Zone GMT Select the Time Zone of your location Current Time Display the time with year month date hour minute second when you select the SNTP mode with ON 1 Press the Apply button at the bottom after you finish to save changes 2 Press the Reboot button to apply the changes ...

Page 43: ...t to Fifth first being the highest priority and Fifth being the lowest You can choose the following codec s G711U G711A G723 G729A G726 Codec Packet Size You can specify the packet size in the drop down list for each particular codec you can choose the following G711U 20 40 60 G711A 20 40 60 G723 30 60 90 G729A 20 40 60 ...

Page 44: ... 40 60 Bandwidth Required When you select the codec packet size shown above system will set default requirement of bandwidth 1 Press the Apply button at the bottom after you finish to save changes 2 Press the Reboot button to apply the changes ...

Page 45: ...ter buffer The range is 0 200 ms and the default setting is 200 ms OPTFactor Specify the dynamic jitter buffer frame error delay optimization factor the range is 0 13 VAD Enable Disable the VAD Voice Activity Detection feature This is supported on all codices that the FXS FXO equips Echo cancellation Enable Disable the echo cancellation feature The default setting is Enable Local voice volume Spec...

Page 46: ...lume Specify the volume gain of the voice in the remote side 5 20 db default is 3 db default is 3 db DTMF volume Specify the volume gain of the DTMF 3 32 db default is 10 db 1 Press the Apply button at the bottom after you finish to save changes 2 Press the Reboot button to apply the changes ...

Page 47: ...level low level the On and Off time for tone 1 and 2 Busy tone Specify the pattern of the Busy tone you can adjust the high frequency low frequency high level low level the On and Off time for tone 1 and 2 Call waiting FXS only Specify the pattern of the call waiting tone you can adjust the high frequency low frequency high level low level the On and Off time for tone 1 and 2 Voice Notify for FXS ...

Page 48: ... high level low level the On and Off time for tone 1 and 2 P S If the disconnect tone only has single frequency please set it to low frequency If the disconnect tone only has single cadence please set it to Tone 1 Disconnect tone 2 Specify the pattern of the disconnect tone for disconnect tone 2 second set you can adjust the high frequency low frequency high level low level the On and Off time for...

Page 49: ...ging OFF Specify the Ringing OFF value ringing ring OFF 0 8000 Unit ms Ringing level Specify the ringing level ringing level 0 94 Unit V Flash low Specify the value of the flash low 60 2000 Unit ms If the phone set s flash time is smaller than the Flash Low setting the flash will be ignored Flash high Specify the value of the flash high 60 2000 Unit ms If the phone set s flash time is larger than ...

Page 50: ...OFF Specify the Ringing OFF value ringing ring OFF 0 8000 Unit ms Ringing level Specify the ringing level ringing level 0 94 Unit V Min Digit Count Specify the minimum digit count 1 10 0 Disable this feature is used to change the ringing frequency by detecting the digit length of incoming calls number When the digit length of an incoming caller number is greater than the specified setting the syst...

Page 51: ...hed Prefix The prefix to be matched length for DM The longest prefix will be matched first Matched min Length Set to 0 for ignoring the length The other 1 32 are the length to be matched longest as a condition Start Pos The start position to be replaced Stop Pos The stop position to be replaced Replace Value The value to replace Example prefix Min Len Start pos Stop pos Replace Value Test DNIS Res...

Page 52: ...y the dialing by added a p into the replace value It might be useful if you want to wait for a while and dial the second part of DTMF for calling out Each p represents 2 seconds delay For example 822265699ppp1234 it will first dial 82265699 and wait to 6 sec to dial 1234 1 Press the Apply button at the bottom after you finish to save changes 2 Press the Reboot button to apply the changes ...

Page 53: ... or until the dial time timeout period The number can be specified depending on the length of the dialed number or the prefix of the dialed number For example if the user sets First Example Function Enable Leading digit 02 Total Digit count 10 If the user dials a 10 digit number with a prefix of 02 e g 0282265699 the WELLGATE 26XX will immediately detect it and dial this number straight away Secon...

Page 54: ... 10 If the user set the Function parameter as Disable the call number with a length of 10 digits and a prefix of 02 will proceed as normal The user will need to wait until dial timeout period for the call to be made or press the on the keypad at the end of the dialing number to make the call You can configure up to 50 entries in the Dial Plan 1 Press the Apply button at the bottom after you finish...

Page 55: ... than it Route to The outgoing call type could be FXO FXS VOIP P2P Backup route to If primary route is unable to reach the destination whether to use the backup routing or not The backup outgoing call type could be FXO FXS VOIP P2P which require being different as the same type of primary route DM Group The DM group here can be used as the DM after routing rule was selected It is useful especially...

Page 56: ...ision server Mode Enable Disable provision function Provision server IP address Specify the Provision Server s IP address Provision server port Specify the Provision server port Provision cycle time Specify the cycle time of the provisioning unit sec Provision default time Specify a scheduled time in a day 1 Press the Apply button at the bottom after you finish to save changes 2 Press the Reboot b...

Page 57: ... EN V106d 56 3 5 2 Save Reload setting Export File Click the Export button to export user cfg data Import File Specify the file path and file name to Import the configure data 1 Press the Reboot button to apply the changes ...

Page 58: ...7 3 5 3 Voice File Voice File Type Voice files type to be uploaded It could be greeting or hold tone Upload File Specify the file path and file name to upload Please make sure that the file format needs to be G 711U 8K 8 bits raw file ...

Page 59: ...lick the Open button 5 Back in the web configuration menu press the Start button next to the Http Upload s browse button to execute the upgrade process 6 Please wait while the device updates itself with the firmware 7 After the update process is finish you will be taken to a web page indicating that it was successful see figure below Note For consistency it is recommended to reload default setting...

Page 60: ...06d 59 3 5 5 Reset to Default Users can restore back to factory default settings using this feature The password of the account and the network configurations are the things that will not be changed when this feature is executed ...

Page 61: ... Displays the current IP address of the WAN port Subnet mask Displays the current subnet mask s IP Default gateway Displays the current default gateway s IP Primary DNS address Displays the current primary DNS address Second DNS address Displays the current secondary DNS address WAN MAC Displays the MAC address of the WAN port ...

Page 62: ...on Info Boot version Displays the current boot version loaded on the WELLGATE 26XX Post version Displays the current post version loaded on the WELLGATE 26XX Application version Displays the current application version loaded on the WELLGATE 26XX ...

Page 63: ...ing port number Enable Whether the port is enabled or disable Plug Whether PSTN is connected to the FXO port or not Status Displays the status of the port Status Time Status updated time Register Proxy Displays the registration status of the corresponding port number if the port Register success it will display Yes Caller ID Calling party ID Called ID Called party ID Codec Voice Codec to be used ...

Page 64: ...ser Current password Specify the current password for the user selected in the drop down list above New password Specify the new password for the user selected in the drop down list above Confirm new password Repeat the new password again for confirmation 1 Press the Apply button at the bottom after you finish to save changes 2 Press the Reboot button to apply the changes ...

Page 65: ...anual EN V106d 64 3 6 Rebooting the system Executing this function will reboot the whole system when configuration changes are made to the device it needs to be rebooted for the changes to take effect see figure below ...

Page 66: ...mple shows a way to do the P2P in between a 2608 and 2680 by using the call routing features Used IP address 1 2608 IP is 192 168 18 2 2 2680 IP is 192 168 18 235 A 2608 Configuration Step 1 Disable proxy settings and apply it as follows Step 2 Disable Register for all line and apply it ...

Page 67: ...26xx Technical Manual EN V106d 66 ...

Page 68: ...efix as follow to route the call to 2680 as follows Reboot and try it For this example we are route 26801 to 2680 s first line 26802 to 2680 s second line etc Since the first port of 2680 is the 5060 and second port is 5062 the setting as show as follows ...

Page 69: ...26xx Technical Manual EN V106d 68 B 2680 configuration Step 1 Disable proxy settings as below and apply it ...

Page 70: ...26xx Technical Manual EN V106d 69 Step 2 Disable register for all lines as follows and apply it ...

Page 71: ... prefix to route to 2608 s FXS port Reboot and try it For this example we are route 260801 to 2608 s first FXS line 260892 to 2608 s second FXS line etc Since the first port of 2608 is the 5060 and second port is 5062 the setting as show as follows ...

Page 72: ...Example 2 This configuration shows an example to use the hot line for p2p calling It is useful when you want your FXS pickup a phone and calling to a predefined destination A 2608 configuration Step 1 Disable proxy settings and apply it ...

Page 73: ...ine need to do the P2P hot line put hotline number as the format of number uri port Apply and reboot it In this example when FXS line 1 pickup the phone it will be hot line to 26801 192 168 18 235 5060 Line 3 will be route to 26803 192 168 18 235 5060 ...

Page 74: ...26xx Technical Manual EN V106d 73 B 2680 configuration Step 1 Disable proxy settings and apply it ...

Page 75: ... need to do the P2P hot line put hotline number as the format of number uri port Apply and reboot it In this example when FXO line 1 receives an incoming call it will be hot line to 260801 192 168 18 2 5060 Line 3 will be route to 260803 192 168 18 2 5060 ...

Page 76: ...the p2p call to the representative number of 2608 which provides serial line hunting The same as 2608 to route to 2680 s representative number A Configuration 2608 Step 1 Check the primary proxy and representative number enable option then setup the required parameters of the representative number Apply it Since the P2P call will be used for this representative number uncheck the primary proxy and...

Page 77: ...26xx Technical Manual EN V106d 76 Step 2 Disable SIP registers for all lines and apply it ...

Page 78: ... Step 3 Create a call routing entry for routing to 2680 s representative number as below Reboot it to take effective In this example the call will be route to 26800 192 168 18 235 5076 5076 is the port number or representative listened ...

Page 79: ...ation Step 1 Check the primary proxy and representative number enable option then setup the required parameters of the representative number Apply it Since the P2P call will be used for this representative number uncheck the primary proxy and apply it ...

Page 80: ...26xx Technical Manual EN V106d 79 Step 2 Disable sip register for all lines and apply it ...

Page 81: ... Step 3 Create a call routing entry for routing to 2608 s representative number as below Reboot it to take effective In this example the call will be route to 260800 192 168 18 2 5076 5076 is the port number or representative listened ...

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