Phonoscope to Offer Portico

Citel PLC
27 June 2007



                                         
    Citel Announces Phonoscope to Offer Portico TVA VoIP Migration Equipment

  TVA Accelerates Enterprise Migration to Hosted IP Telephony in Houston Area


Citel plc ("Citel"), The VoIP Migration Company (LSE AIM: CITE.L), today
announced it will supply its Portico(TM)Telephone VoIP Adapter ("TVA"TM) to
Phonoscope Services, Inc. ("Phonoscope") as part of Phonoscope's Asterisk-based
Hosted IP telephony service. Using Citel's Portico TVA in a hosted environment
enables enterprises to obtain the feature and cost-savings benefits of voice
over IP while continuing to utilize their existing PBX telephones and wiring
infrastructure. Phonoscope will use the Citel/Asterisk solution to accelerate
business-grade IP telephony migration in the greater Houston metro area.


"Citel's Portico TVA is a valuable addition to Phonoscope's Hosted IP offering
for enterprises because it eliminates many of the objections to VoIP migration,"
said Fran Will, Vice President of Phonoscope. "We are thrilled to partner with
Citel in accelerating Hosted VoIP adoption. This technology is going to allow
Phonoscope to quickly penetrate Houston's enterprise telephony market."


The solution from Citel and Phonoscope delivers the features and functionality
of VoIP without the disruption and expense associated with typical "rip and
replace" VoIP migration solutions. With the Portico TVA, enterprises avoid
network upgrades, new handsets, and retraining. PBX handsets connect over
existing wiring directly to the Portico TVA, which connects to Phonoscope's
network over Ethernet via the SIP protocol.


"Many enterprises are considering Hosted IP telephony for its cost savings, rich
features, and simplicity, but they are hesitant to abandon their PBX handset and
wiring investment," said Michael Burke, Citel's senior vice president. "With
Phonoscope's long history in the access services business and their
Asterisk-based Hosted IP platform, we believe the Citel solution will have a
positive impact on their growth in the Houston market."


The Citel Portico TVA is available in digital, P phone, and analog compatible
configurations. Portico TVA interoperates with more than 65 handset types
including Avaya Definity(R), NEC DTERM, Nortel Meridian(R), Norstar(R),
Centrex-compatible P phones, Panasonic DBS, and Toshiba Strata DK.


For more information:
Cardew Group  Tim Robertson             020 7930 0777      M: 07900 927 650
              Shan Shan Willenbrock
              David Roach



About Phonoscope

With over 54 years of technology leadership in Houston, Phonoscope holds the
nation's largest privately owned fiber optic Metropolitan Area Network (MAN).
Phonoscope supplies its customers with a variety of commercial grade services
and continues to provide service to its valuable residential clientele. With its
extensive fiber optic coverage, Phonoscope is well positioned to serve almost
any business in the greater Houston metro area.


About Citel plc.

Citel enables SMBs, large enterprises and service providers to realize the cost
and productivity benefits of IP telephony, while at the same time leveraging
their existing PBX infrastructure. Businesses with single or distributed
locations and PBX vendors can now deploy next-generation IP applications and
services at their own pace, with little business disruption. Service providers
can deploy hosted IP telephony services quickly, without having to "rip and
replace" existing enterprise PBX handsets and LAN cabling. Citel is a publicly
traded company with corporate headquarters in Seattle, and development offices
in Calgary, Alberta (Canada) and Nottingham, England (UK). For more information,
visit www.citel.com.


The contents of this Press Release may contain forward-looking statements which
can be generally identified as such because the context of the statement will
include the words such as Citel plc "expects", "should", "believes",
"anticipates" or words of similar import. Such forward looking statements are
subject to certain risks and uncertainties including the financial performance
of Citel plc which could cause actual results, performance or achievements of
Citel plc to differ materially from any future results, performance or
achievements expressed or implied by such forward-looking statements.   Readers
are cautioned not to place undue reliance on these forward-looking statements.

This Press Release does not constitute or form any part of any offer or
invitation to sell or issue or any solicitation of any offer to purchase or
subscribe for any securities in any jurisdiction, nor shall it (or any part of
it) or the fact of its distribution form the basis of, or be relied upon in
connection with, or act as any inducement to enter into, any contract or
commitment therefore.


                                    # # # #

Copyright 2007, Citel plc. All Rights Reserved. Citel, Portico, TVA, and The 
VoIP Migration Company are either trademarks or registered trademarks of Citel. 
All other product and company names mentioned herein may be trademarks of their 
respective owners.





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